Add m-esr52 at 52.6.0

1 files changed, 1167 insertions, 0 deletions

diff --git a/dom/media/gmp/GMPParent.cpp b/dom/media/gmp/GMPParent.cpp
new file mode 100644
index 0000000000..75468ea9af
--- /dev/null
+++ b/dom/media/gmp/GMPParent.cpp
@@ -0,0 +1,1167 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "GMPParent.h"
+#include "mozilla/Logging.h"
+#include "nsComponentManagerUtils.h"
+#include "nsComponentManagerUtils.h"
+#include "nsThreadUtils.h"
+#include "nsIRunnable.h"
+#include "nsIWritablePropertyBag2.h"
+#include "mozIGeckoMediaPluginService.h"
+#include "mozilla/ipc/GeckoChildProcessHost.h"
+#include "mozilla/SSE.h"
+#include "mozilla/SyncRunnable.h"
+#include "mozilla/Unused.h"
+#include "nsIObserverService.h"
+#include "GMPTimerParent.h"
+#include "runnable_utils.h"
+#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
+#include "mozilla/SandboxInfo.h"
+#endif
+#include "GMPContentParent.h"
+#include "MediaPrefs.h"
+#include "VideoUtils.h"
+
+#include "mozilla/dom/CrashReporterParent.h"
+using mozilla::dom::CrashReporterParent;
+using mozilla::ipc::GeckoChildProcessHost;
+
+#ifdef MOZ_CRASHREPORTER
+#include "nsPrintfCString.h"
+using CrashReporter::AnnotationTable;
+using CrashReporter::GetIDFromMinidump;
+#endif
+
+#include "mozilla/Telemetry.h"
+
+#ifdef XP_WIN
+#include "WMFDecoderModule.h"
+#endif
+
+#include "mozilla/dom/WidevineCDMManifestBinding.h"
+#include "widevine-adapter/WidevineAdapter.h"
+
+namespace mozilla {
+
+#undef LOG
+#undef LOGD
+
+extern LogModule* GetGMPLog();
+#define LOG(level, x, ...) MOZ_LOG(GetGMPLog(), (level), (x, ##__VA_ARGS__))
+#define LOGD(x, ...) LOG(mozilla::LogLevel::Debug, "GMPParent[%p|childPid=%d] " x, this, mChildPid, ##__VA_ARGS__)
+
+#ifdef __CLASS__
+#undef __CLASS__
+#endif
+#define __CLASS__ "GMPParent"
+
+namespace gmp {
+
+GMPParent::GMPParent()
+  : mState(GMPStateNotLoaded)
+  , mProcess(nullptr)
+  , mDeleteProcessOnlyOnUnload(false)
+  , mAbnormalShutdownInProgress(false)
+  , mIsBlockingDeletion(false)
+  , mCanDecrypt(false)
+  , mGMPContentChildCount(0)
+  , mAsyncShutdownRequired(false)
+  , mAsyncShutdownInProgress(false)
+  , mChildPid(0)
+  , mHoldingSelfRef(false)
+{
+  mPluginId = GeckoChildProcessHost::GetUniqueID();
+  LOGD("GMPParent ctor id=%u", mPluginId);
+}
+
+GMPParent::~GMPParent()
+{
+  LOGD("GMPParent dtor id=%u", mPluginId);
+  MOZ_ASSERT(!mProcess);
+}
+
+nsresult
+GMPParent::CloneFrom(const GMPParent* aOther)
+{
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+  MOZ_ASSERT(aOther->mDirectory && aOther->mService, "null plugin directory");
+
+  mService = aOther->mService;
+  mDirectory = aOther->mDirectory;
+  mName = aOther->mName;
+  mVersion = aOther->mVersion;
+  mDescription = aOther->mDescription;
+  mDisplayName = aOther->mDisplayName;
+#ifdef XP_WIN
+  mLibs = aOther->mLibs;
+#endif
+  for (const GMPCapability& cap : aOther->mCapabilities) {
+    mCapabilities.AppendElement(cap);
+  }
+  mAdapter = aOther->mAdapter;
+  return NS_OK;
+}
+
+RefPtr<GenericPromise>
+GMPParent::Init(GeckoMediaPluginServiceParent* aService, nsIFile* aPluginDir)
+{
+  MOZ_ASSERT(aPluginDir);
+  MOZ_ASSERT(aService);
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+
+  mService = aService;
+  mDirectory = aPluginDir;
+
+  // aPluginDir is <profile-dir>/<gmp-plugin-id>/<version>
+  // where <gmp-plugin-id> should be gmp-gmpopenh264
+  nsCOMPtr<nsIFile> parent;
+  nsresult rv = aPluginDir->GetParent(getter_AddRefs(parent));
+  if (NS_FAILED(rv)) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  nsAutoString parentLeafName;
+  rv = parent->GetLeafName(parentLeafName);
+  if (NS_FAILED(rv)) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  LOGD("%s: for %s", __FUNCTION__, NS_LossyConvertUTF16toASCII(parentLeafName).get());
+
+  MOZ_ASSERT(parentLeafName.Length() > 4);
+  mName = Substring(parentLeafName, 4);
+
+  return ReadGMPMetaData();
+}
+
+void
+GMPParent::Crash()
+{
+  if (mState != GMPStateNotLoaded) {
+    Unused << SendCrashPluginNow();
+  }
+}
+
+nsresult
+GMPParent::LoadProcess()
+{
+  MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+  MOZ_ASSERT(mState == GMPStateNotLoaded);
+
+  nsAutoString path;
+  if (NS_FAILED(mDirectory->GetPath(path))) {
+    return NS_ERROR_FAILURE;
+  }
+  LOGD("%s: for %s", __FUNCTION__, NS_ConvertUTF16toUTF8(path).get());
+
+  if (!mProcess) {
+    mProcess = new GMPProcessParent(NS_ConvertUTF16toUTF8(path).get());
+    if (!mProcess->Launch(30 * 1000)) {
+      LOGD("%s: Failed to launch new child process", __FUNCTION__);
+      mProcess->Delete();
+      mProcess = nullptr;
+      return NS_ERROR_FAILURE;
+    }
+
+    mChildPid = base::GetProcId(mProcess->GetChildProcessHandle());
+    LOGD("%s: Launched new child process", __FUNCTION__);
+
+    bool opened = Open(mProcess->GetChannel(),
+                       base::GetProcId(mProcess->GetChildProcessHandle()));
+    if (!opened) {
+      LOGD("%s: Failed to open channel to new child process", __FUNCTION__);
+      mProcess->Delete();
+      mProcess = nullptr;
+      return NS_ERROR_FAILURE;
+    }
+    LOGD("%s: Opened channel to new child process", __FUNCTION__);
+
+    bool ok = SendSetNodeId(mNodeId);
+    if (!ok) {
+      LOGD("%s: Failed to send node id to child process", __FUNCTION__);
+      return NS_ERROR_FAILURE;
+    }
+    LOGD("%s: Sent node id to child process", __FUNCTION__);
+
+#ifdef XP_WIN
+    if (!mLibs.IsEmpty()) {
+      bool ok = SendPreloadLibs(mLibs);
+      if (!ok) {
+        LOGD("%s: Failed to send preload-libs to child process", __FUNCTION__);
+        return NS_ERROR_FAILURE;
+      }
+      LOGD("%s: Sent preload-libs ('%s') to child process", __FUNCTION__, mLibs.get());
+    }
+#endif
+
+    // Intr call to block initialization on plugin load.
+    ok = CallStartPlugin(mAdapter);
+    if (!ok) {
+      LOGD("%s: Failed to send start to child process", __FUNCTION__);
+      return NS_ERROR_FAILURE;
+    }
+    LOGD("%s: Sent StartPlugin to child process", __FUNCTION__);
+  }
+
+  mState = GMPStateLoaded;
+
+  // Hold a self ref while the child process is alive. This ensures that
+  // during shutdown the GMPParent stays alive long enough to
+  // terminate the child process.
+  MOZ_ASSERT(!mHoldingSelfRef);
+  mHoldingSelfRef = true;
+  AddRef();
+
+  return NS_OK;
+}
+
+// static
+void
+GMPParent::AbortWaitingForGMPAsyncShutdown(nsITimer* aTimer, void* aClosure)
+{
+  NS_WARNING("Timed out waiting for GMP async shutdown!");
+  GMPParent* parent = reinterpret_cast<GMPParent*>(aClosure);
+  MOZ_ASSERT(parent->mService);
+#if defined(MOZ_CRASHREPORTER)
+  parent->mService->SetAsyncShutdownPluginState(parent, 'G',
+    NS_LITERAL_CSTRING("Timed out waiting for async shutdown"));
+#endif
+  parent->mService->AsyncShutdownComplete(parent);
+}
+
+nsresult
+GMPParent::EnsureAsyncShutdownTimeoutSet()
+{
+  MOZ_ASSERT(mAsyncShutdownRequired);
+  if (mAsyncShutdownTimeout) {
+    return NS_OK;
+  }
+
+  nsresult rv;
+  mAsyncShutdownTimeout = do_CreateInstance(NS_TIMER_CONTRACTID, &rv);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+    return rv;
+  }
+
+  // Set timer to abort waiting for plugin to shutdown if it takes
+  // too long.
+  rv = mAsyncShutdownTimeout->SetTarget(mGMPThread);
+  if (NS_WARN_IF(NS_FAILED(rv))) {
+   return rv;
+  }
+
+  int32_t timeout = MediaPrefs::GMPAsyncShutdownTimeout();
+  RefPtr<GeckoMediaPluginServiceParent> service =
+    GeckoMediaPluginServiceParent::GetSingleton();
+  if (service) {
+    timeout = service->AsyncShutdownTimeoutMs();
+  }
+  rv = mAsyncShutdownTimeout->InitWithFuncCallback(
+    &AbortWaitingForGMPAsyncShutdown, this, timeout,
+    nsITimer::TYPE_ONE_SHOT);
+  Unused << NS_WARN_IF(NS_FAILED(rv));
+  return rv;
+}
+
+bool
+GMPParent::RecvPGMPContentChildDestroyed()
+{
+  --mGMPContentChildCount;
+  if (!IsUsed()) {
+#if defined(MOZ_CRASHREPORTER)
+    if (mService) {
+      mService->SetAsyncShutdownPluginState(this, 'E',
+        NS_LITERAL_CSTRING("Last content child destroyed"));
+    }
+#endif
+    CloseIfUnused();
+  }
+#if defined(MOZ_CRASHREPORTER)
+  else {
+    if (mService) {
+      mService->SetAsyncShutdownPluginState(this, 'F',
+        nsPrintfCString("Content child destroyed, remaining: %u", mGMPContentChildCount));
+    }
+  }
+#endif
+  return true;
+}
+
+void
+GMPParent::CloseIfUnused()
+{
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+  LOGD("%s: mAsyncShutdownRequired=%d", __FUNCTION__, mAsyncShutdownRequired);
+
+  if ((mDeleteProcessOnlyOnUnload ||
+       mState == GMPStateLoaded ||
+       mState == GMPStateUnloading) &&
+      !IsUsed()) {
+    // Ensure all timers are killed.
+    for (uint32_t i = mTimers.Length(); i > 0; i--) {
+      mTimers[i - 1]->Shutdown();
+    }
+
+    if (mAsyncShutdownRequired) {
+      if (!mAsyncShutdownInProgress) {
+        LOGD("%s: sending async shutdown notification", __FUNCTION__);
+#if defined(MOZ_CRASHREPORTER)
+        if (mService) {
+          mService->SetAsyncShutdownPluginState(this, 'H',
+            NS_LITERAL_CSTRING("Sent BeginAsyncShutdown"));
+        }
+#endif
+        mAsyncShutdownInProgress = true;
+        if (!SendBeginAsyncShutdown()) {
+#if defined(MOZ_CRASHREPORTER)
+          if (mService) {
+            mService->SetAsyncShutdownPluginState(this, 'I',
+              NS_LITERAL_CSTRING("Could not send BeginAsyncShutdown - Aborting async shutdown"));
+          }
+#endif
+          AbortAsyncShutdown();
+        } else if (NS_FAILED(EnsureAsyncShutdownTimeoutSet())) {
+#if defined(MOZ_CRASHREPORTER)
+          if (mService) {
+            mService->SetAsyncShutdownPluginState(this, 'J',
+              NS_LITERAL_CSTRING("Could not start timer after sending BeginAsyncShutdown - Aborting async shutdown"));
+          }
+#endif
+          AbortAsyncShutdown();
+        }
+      }
+    } else {
+#if defined(MOZ_CRASHREPORTER)
+      if (mService) {
+        mService->SetAsyncShutdownPluginState(this, 'K',
+          NS_LITERAL_CSTRING("No (more) async-shutdown required"));
+      }
+#endif
+      // No async-shutdown, kill async-shutdown timer started in CloseActive().
+      AbortAsyncShutdown();
+      // Any async shutdown must be complete. Shutdown GMPStorage.
+      for (size_t i = mStorage.Length(); i > 0; i--) {
+        mStorage[i - 1]->Shutdown();
+      }
+      Shutdown();
+    }
+  }
+}
+
+void
+GMPParent::AbortAsyncShutdown()
+{
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+  LOGD("%s", __FUNCTION__);
+
+  if (mAsyncShutdownTimeout) {
+    mAsyncShutdownTimeout->Cancel();
+    mAsyncShutdownTimeout = nullptr;
+  }
+
+  if (!mAsyncShutdownRequired || !mAsyncShutdownInProgress) {
+    return;
+  }
+
+  RefPtr<GMPParent> kungFuDeathGrip(this);
+  mService->AsyncShutdownComplete(this);
+  mAsyncShutdownRequired = false;
+  mAsyncShutdownInProgress = false;
+  CloseIfUnused();
+}
+
+void
+GMPParent::CloseActive(bool aDieWhenUnloaded)
+{
+  LOGD("%s: state %d", __FUNCTION__, mState);
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+
+  if (aDieWhenUnloaded) {
+    mDeleteProcessOnlyOnUnload = true; // don't allow this to go back...
+  }
+  if (mState == GMPStateLoaded) {
+    mState = GMPStateUnloading;
+  }
+  if (mState != GMPStateNotLoaded && IsUsed()) {
+#if defined(MOZ_CRASHREPORTER)
+    if (mService) {
+      mService->SetAsyncShutdownPluginState(this, 'A',
+        nsPrintfCString("Sent CloseActive, content children to close: %u", mGMPContentChildCount));
+    }
+#endif
+    if (!SendCloseActive()) {
+#if defined(MOZ_CRASHREPORTER)
+      if (mService) {
+        mService->SetAsyncShutdownPluginState(this, 'B',
+          NS_LITERAL_CSTRING("Could not send CloseActive - Aborting async shutdown"));
+      }
+#endif
+      AbortAsyncShutdown();
+    } else if (IsUsed()) {
+      // We're expecting RecvPGMPContentChildDestroyed's -> Start async-shutdown timer now if needed.
+      if (mAsyncShutdownRequired && NS_FAILED(EnsureAsyncShutdownTimeoutSet())) {
+#if defined(MOZ_CRASHREPORTER)
+        if (mService) {
+          mService->SetAsyncShutdownPluginState(this, 'C',
+            NS_LITERAL_CSTRING("Could not start timer after sending CloseActive - Aborting async shutdown"));
+        }
+#endif
+        AbortAsyncShutdown();
+      }
+    } else {
+      // We're not expecting any RecvPGMPContentChildDestroyed
+      // -> Call CloseIfUnused() now, to run async shutdown if necessary.
+      // Note that CloseIfUnused() may have already been called from a prior
+      // RecvPGMPContentChildDestroyed(), however depending on the state at
+      // that time, it might not have proceeded with shutdown; And calling it
+      // again after shutdown is fine because after the first one we'll be in
+      // GMPStateNotLoaded.
+#if defined(MOZ_CRASHREPORTER)
+      if (mService) {
+        mService->SetAsyncShutdownPluginState(this, 'D',
+          NS_LITERAL_CSTRING("Content children already destroyed"));
+      }
+#endif
+      CloseIfUnused();
+    }
+  }
+}
+
+void
+GMPParent::MarkForDeletion()
+{
+  mDeleteProcessOnlyOnUnload = true;
+  mIsBlockingDeletion = true;
+}
+
+bool
+GMPParent::IsMarkedForDeletion()
+{
+  return mIsBlockingDeletion;
+}
+
+void
+GMPParent::Shutdown()
+{
+  LOGD("%s", __FUNCTION__);
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+
+  MOZ_ASSERT(!mAsyncShutdownTimeout, "Should have canceled shutdown timeout");
+
+  if (mAbnormalShutdownInProgress) {
+    return;
+  }
+
+  MOZ_ASSERT(!IsUsed());
+  if (mState == GMPStateNotLoaded || mState == GMPStateClosing) {
+    return;
+  }
+
+  RefPtr<GMPParent> self(this);
+  DeleteProcess();
+
+  // XXX Get rid of mDeleteProcessOnlyOnUnload and this code when
+  // Bug 1043671 is fixed
+  if (!mDeleteProcessOnlyOnUnload) {
+    // Destroy ourselves and rise from the fire to save memory
+    mService->ReAddOnGMPThread(self);
+  } // else we've been asked to die and stay dead
+  MOZ_ASSERT(mState == GMPStateNotLoaded);
+}
+
+class NotifyGMPShutdownTask : public Runnable {
+public:
+  explicit NotifyGMPShutdownTask(const nsAString& aNodeId)
+    : mNodeId(aNodeId)
+  {
+  }
+  NS_IMETHOD Run() override {
+    MOZ_ASSERT(NS_IsMainThread());
+    nsCOMPtr<nsIObserverService> obsService = mozilla::services::GetObserverService();
+    MOZ_ASSERT(obsService);
+    if (obsService) {
+      obsService->NotifyObservers(nullptr, "gmp-shutdown", mNodeId.get());
+    }
+    return NS_OK;
+  }
+  nsString mNodeId;
+};
+
+void
+GMPParent::ChildTerminated()
+{
+  RefPtr<GMPParent> self(this);
+  nsIThread* gmpThread = GMPThread();
+
+  if (!gmpThread) {
+    // Bug 1163239 - this can happen on shutdown.
+    // PluginTerminated removes the GMP from the GMPService.
+    // On shutdown we can have this case where it is already been
+    // removed so there is no harm in not trying to remove it again.
+    LOGD("%s::%s: GMPThread() returned nullptr.", __CLASS__, __FUNCTION__);
+  } else {
+    gmpThread->Dispatch(NewRunnableMethod<RefPtr<GMPParent>>(
+                         mService,
+                         &GeckoMediaPluginServiceParent::PluginTerminated,
+                         self),
+                         NS_DISPATCH_NORMAL);
+  }
+}
+
+void
+GMPParent::DeleteProcess()
+{
+  LOGD("%s", __FUNCTION__);
+
+  if (mState != GMPStateClosing) {
+    // Don't Close() twice!
+    // Probably remove when bug 1043671 is resolved
+    mState = GMPStateClosing;
+    Close();
+  }
+  mProcess->Delete(NewRunnableMethod(this, &GMPParent::ChildTerminated));
+  LOGD("%s: Shut down process", __FUNCTION__);
+  mProcess = nullptr;
+  mState = GMPStateNotLoaded;
+
+  NS_DispatchToMainThread(
+    new NotifyGMPShutdownTask(NS_ConvertUTF8toUTF16(mNodeId)),
+    NS_DISPATCH_NORMAL);
+
+  if (mHoldingSelfRef) {
+    Release();
+    mHoldingSelfRef = false;
+  }
+}
+
+GMPState
+GMPParent::State() const
+{
+  return mState;
+}
+
+// Not changing to use mService since we'll be removing it
+nsIThread*
+GMPParent::GMPThread()
+{
+  if (!mGMPThread) {
+    nsCOMPtr<mozIGeckoMediaPluginService> mps = do_GetService("@mozilla.org/gecko-media-plugin-service;1");
+    MOZ_ASSERT(mps);
+    if (!mps) {
+      return nullptr;
+    }
+    // Not really safe if we just grab to the mGMPThread, as we don't know
+    // what thread we're running on and other threads may be trying to
+    // access this without locks!  However, debug only, and primary failure
+    // mode outside of compiler-helped TSAN is a leak.  But better would be
+    // to use swap() under a lock.
+    mps->GetThread(getter_AddRefs(mGMPThread));
+    MOZ_ASSERT(mGMPThread);
+  }
+
+  return mGMPThread;
+}
+
+/* static */
+bool
+GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
+                        const nsCString& aAPI,
+                        const nsTArray<nsCString>& aTags)
+{
+  for (const nsCString& tag : aTags) {
+    if (!GMPCapability::Supports(aCapabilities, aAPI, tag)) {
+      return false;
+    }
+  }
+  return true;
+}
+
+/* static */
+bool
+GMPCapability::Supports(const nsTArray<GMPCapability>& aCapabilities,
+                        const nsCString& aAPI,
+                        const nsCString& aTag)
+{
+  for (const GMPCapability& capabilities : aCapabilities) {
+    if (!capabilities.mAPIName.Equals(aAPI)) {
+      continue;
+    }
+    for (const nsCString& tag : capabilities.mAPITags) {
+      if (tag.Equals(aTag)) {
+#ifdef XP_WIN
+        // Clearkey on Windows advertises that it can decode in its GMP info
+        // file, but uses Windows Media Foundation to decode. That's not present
+        // on Windows XP, and on some Vista, Windows N, and KN variants without
+        // certain services packs.
+        if (tag.Equals(kEMEKeySystemClearkey)) {
+          if (capabilities.mAPIName.EqualsLiteral(GMP_API_VIDEO_DECODER)) {
+            if (!WMFDecoderModule::HasH264()) {
+              continue;
+            }
+          } else if (capabilities.mAPIName.EqualsLiteral(GMP_API_AUDIO_DECODER)) {
+            if (!WMFDecoderModule::HasAAC()) {
+              continue;
+            }
+          }
+        }
+#endif
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+bool
+GMPParent::EnsureProcessLoaded()
+{
+  if (mState == GMPStateLoaded) {
+    return true;
+  }
+  if (mState == GMPStateClosing ||
+      mState == GMPStateUnloading) {
+    return false;
+  }
+
+  nsresult rv = LoadProcess();
+
+  return NS_SUCCEEDED(rv);
+}
+
+#ifdef MOZ_CRASHREPORTER
+void
+GMPParent::WriteExtraDataForMinidump(CrashReporter::AnnotationTable& notes)
+{
+  notes.Put(NS_LITERAL_CSTRING("GMPPlugin"), NS_LITERAL_CSTRING("1"));
+  notes.Put(NS_LITERAL_CSTRING("PluginFilename"),
+                               NS_ConvertUTF16toUTF8(mName));
+  notes.Put(NS_LITERAL_CSTRING("PluginName"), mDisplayName);
+  notes.Put(NS_LITERAL_CSTRING("PluginVersion"), mVersion);
+}
+
+void
+GMPParent::GetCrashID(nsString& aResult)
+{
+  CrashReporterParent* cr =
+    static_cast<CrashReporterParent*>(LoneManagedOrNullAsserts(ManagedPCrashReporterParent()));
+  if (NS_WARN_IF(!cr)) {
+    return;
+  }
+
+  AnnotationTable notes(4);
+  WriteExtraDataForMinidump(notes);
+  nsCOMPtr<nsIFile> dumpFile;
+  TakeMinidump(getter_AddRefs(dumpFile), nullptr);
+  if (!dumpFile) {
+    NS_WARNING("GMP crash without crash report");
+    aResult = mName;
+    aResult += '-';
+    AppendUTF8toUTF16(mVersion, aResult);
+    return;
+  }
+  GetIDFromMinidump(dumpFile, aResult);
+  cr->GenerateCrashReportForMinidump(dumpFile, &notes);
+}
+
+static void
+GMPNotifyObservers(const uint32_t aPluginID, const nsACString& aPluginName, const nsAString& aPluginDumpID)
+{
+  nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
+  nsCOMPtr<nsIWritablePropertyBag2> propbag =
+    do_CreateInstance("@mozilla.org/hash-property-bag;1");
+  if (obs && propbag) {
+    propbag->SetPropertyAsUint32(NS_LITERAL_STRING("pluginID"), aPluginID);
+    propbag->SetPropertyAsACString(NS_LITERAL_STRING("pluginName"), aPluginName);
+    propbag->SetPropertyAsAString(NS_LITERAL_STRING("pluginDumpID"), aPluginDumpID);
+    obs->NotifyObservers(propbag, "gmp-plugin-crash", nullptr);
+  }
+
+  RefPtr<gmp::GeckoMediaPluginService> service =
+    gmp::GeckoMediaPluginService::GetGeckoMediaPluginService();
+  if (service) {
+    service->RunPluginCrashCallbacks(aPluginID, aPluginName);
+  }
+}
+#endif
+void
+GMPParent::ActorDestroy(ActorDestroyReason aWhy)
+{
+  LOGD("%s: (%d)", __FUNCTION__, (int)aWhy);
+#ifdef MOZ_CRASHREPORTER
+  if (AbnormalShutdown == aWhy) {
+    Telemetry::Accumulate(Telemetry::SUBPROCESS_ABNORMAL_ABORT,
+                          NS_LITERAL_CSTRING("gmplugin"), 1);
+    nsString dumpID;
+    GetCrashID(dumpID);
+
+    // NotifyObservers is mainthread-only
+    NS_DispatchToMainThread(WrapRunnableNM(&GMPNotifyObservers,
+                                           mPluginId, mDisplayName, dumpID),
+                            NS_DISPATCH_NORMAL);
+  }
+#endif
+  // warn us off trying to close again
+  mState = GMPStateClosing;
+  mAbnormalShutdownInProgress = true;
+  CloseActive(false);
+
+  // Normal Shutdown() will delete the process on unwind.
+  if (AbnormalShutdown == aWhy) {
+    RefPtr<GMPParent> self(this);
+    if (mAsyncShutdownRequired) {
+#if defined(MOZ_CRASHREPORTER)
+      if (mService) {
+        mService->SetAsyncShutdownPluginState(this, 'M',
+          NS_LITERAL_CSTRING("Actor destroyed"));
+      }
+#endif
+      mService->AsyncShutdownComplete(this);
+      mAsyncShutdownRequired = false;
+    }
+    // Must not call Close() again in DeleteProcess(), as we'll recurse
+    // infinitely if we do.
+    MOZ_ASSERT(mState == GMPStateClosing);
+    DeleteProcess();
+    // Note: final destruction will be Dispatched to ourself
+    mService->ReAddOnGMPThread(self);
+  }
+}
+
+mozilla::dom::PCrashReporterParent*
+GMPParent::AllocPCrashReporterParent(const NativeThreadId& aThread)
+{
+#ifndef MOZ_CRASHREPORTER
+  MOZ_ASSERT(false, "Should only be sent if crash reporting is enabled.");
+#endif
+  CrashReporterParent* cr = new CrashReporterParent();
+  cr->SetChildData(aThread, GeckoProcessType_GMPlugin);
+  return cr;
+}
+
+bool
+GMPParent::DeallocPCrashReporterParent(PCrashReporterParent* aCrashReporter)
+{
+  delete aCrashReporter;
+  return true;
+}
+
+PGMPStorageParent*
+GMPParent::AllocPGMPStorageParent()
+{
+  GMPStorageParent* p = new GMPStorageParent(mNodeId, this);
+  mStorage.AppendElement(p); // Addrefs, released in DeallocPGMPStorageParent.
+  return p;
+}
+
+bool
+GMPParent::DeallocPGMPStorageParent(PGMPStorageParent* aActor)
+{
+  GMPStorageParent* p = static_cast<GMPStorageParent*>(aActor);
+  p->Shutdown();
+  mStorage.RemoveElement(p);
+  return true;
+}
+
+bool
+GMPParent::RecvPGMPStorageConstructor(PGMPStorageParent* aActor)
+{
+  GMPStorageParent* p  = (GMPStorageParent*)aActor;
+  if (NS_WARN_IF(NS_FAILED(p->Init()))) {
+    return false;
+  }
+  return true;
+}
+
+bool
+GMPParent::RecvPGMPTimerConstructor(PGMPTimerParent* actor)
+{
+  return true;
+}
+
+PGMPTimerParent*
+GMPParent::AllocPGMPTimerParent()
+{
+  GMPTimerParent* p = new GMPTimerParent(GMPThread());
+  mTimers.AppendElement(p); // Released in DeallocPGMPTimerParent, or on shutdown.
+  return p;
+}
+
+bool
+GMPParent::DeallocPGMPTimerParent(PGMPTimerParent* aActor)
+{
+  GMPTimerParent* p = static_cast<GMPTimerParent*>(aActor);
+  p->Shutdown();
+  mTimers.RemoveElement(p);
+  return true;
+}
+
+bool
+ReadInfoField(GMPInfoFileParser& aParser, const nsCString& aKey, nsACString& aOutValue)
+{
+  if (!aParser.Contains(aKey) || aParser.Get(aKey).IsEmpty()) {
+    return false;
+  }
+  aOutValue = aParser.Get(aKey);
+  return true;
+}
+
+RefPtr<GenericPromise>
+GMPParent::ReadGMPMetaData()
+{
+  MOZ_ASSERT(mDirectory, "Plugin directory cannot be NULL!");
+  MOZ_ASSERT(!mName.IsEmpty(), "Plugin mName cannot be empty!");
+
+  nsCOMPtr<nsIFile> infoFile;
+  nsresult rv = mDirectory->Clone(getter_AddRefs(infoFile));
+  if (NS_FAILED(rv)) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  infoFile->AppendRelativePath(mName + NS_LITERAL_STRING(".info"));
+
+  if (FileExists(infoFile)) {
+    return ReadGMPInfoFile(infoFile);
+  }
+
+  // Maybe this is the Widevine adapted plugin?
+  nsCOMPtr<nsIFile> manifestFile;
+  rv = mDirectory->Clone(getter_AddRefs(manifestFile));
+  if (NS_FAILED(rv)) {
+    return GenericPromise::CreateAndReject(rv, __func__);
+  }
+  manifestFile->AppendRelativePath(NS_LITERAL_STRING("manifest.json"));
+  return ReadChromiumManifestFile(manifestFile);
+}
+
+RefPtr<GenericPromise>
+GMPParent::ReadGMPInfoFile(nsIFile* aFile)
+{
+  GMPInfoFileParser parser;
+  if (!parser.Init(aFile)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  nsAutoCString apis;
+  if (!ReadInfoField(parser, NS_LITERAL_CSTRING("name"), mDisplayName) ||
+      !ReadInfoField(parser, NS_LITERAL_CSTRING("description"), mDescription) ||
+      !ReadInfoField(parser, NS_LITERAL_CSTRING("version"), mVersion) ||
+      !ReadInfoField(parser, NS_LITERAL_CSTRING("apis"), apis)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+#ifdef XP_WIN
+  // "Libraries" field is optional.
+  ReadInfoField(parser, NS_LITERAL_CSTRING("libraries"), mLibs);
+#endif
+
+  nsTArray<nsCString> apiTokens;
+  SplitAt(", ", apis, apiTokens);
+  for (nsCString api : apiTokens) {
+    int32_t tagsStart = api.FindChar('[');
+    if (tagsStart == 0) {
+      // Not allowed to be the first character.
+      // API name must be at least one character.
+      continue;
+    }
+
+    GMPCapability cap;
+    if (tagsStart == -1) {
+      // No tags.
+      cap.mAPIName.Assign(api);
+    } else {
+      auto tagsEnd = api.FindChar(']');
+      if (tagsEnd == -1 || tagsEnd < tagsStart) {
+        // Invalid syntax, skip whole capability.
+        continue;
+      }
+
+      cap.mAPIName.Assign(Substring(api, 0, tagsStart));
+
+      if ((tagsEnd - tagsStart) > 1) {
+        const nsDependentCSubstring ts(Substring(api, tagsStart + 1, tagsEnd - tagsStart - 1));
+        nsTArray<nsCString> tagTokens;
+        SplitAt(":", ts, tagTokens);
+        for (nsCString tag : tagTokens) {
+          cap.mAPITags.AppendElement(tag);
+        }
+      }
+    }
+
+    // We support the current GMPDecryptor version, and the previous.
+    // We Adapt the previous to the current in the GMPContentChild.
+    if (cap.mAPIName.EqualsLiteral(GMP_API_DECRYPTOR_BACKWARDS_COMPAT)) {
+      cap.mAPIName.AssignLiteral(GMP_API_DECRYPTOR);
+    }
+
+    if (cap.mAPIName.EqualsLiteral(GMP_API_DECRYPTOR)) {
+      mCanDecrypt = true;
+
+#if defined(XP_LINUX) && defined(MOZ_GMP_SANDBOX)
+      if (!mozilla::SandboxInfo::Get().CanSandboxMedia()) {
+        printf_stderr("GMPParent::ReadGMPMetaData: Plugin \"%s\" is an EME CDM"
+                      " but this system can't sandbox it; not loading.\n",
+                      mDisplayName.get());
+        return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+      }
+#endif
+#ifdef XP_WIN
+      // Adobe GMP doesn't work without SSE2. Check the tags to see if
+      // the decryptor is for the Adobe GMP, and refuse to load it if
+      // SSE2 isn't supported.
+      if (cap.mAPITags.Contains(kEMEKeySystemPrimetime) &&
+          !mozilla::supports_sse2()) {
+        return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+      }
+#endif // XP_WIN
+    }
+
+    mCapabilities.AppendElement(Move(cap));
+  }
+
+  if (mCapabilities.IsEmpty()) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  return GenericPromise::CreateAndResolve(true, __func__);
+}
+
+RefPtr<GenericPromise>
+GMPParent::ReadChromiumManifestFile(nsIFile* aFile)
+{
+  nsAutoCString json;
+  if (!ReadIntoString(aFile, json, 5 * 1024)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  // DOM JSON parsing needs to run on the main thread.
+  return InvokeAsync(AbstractThread::MainThread(), this, __func__,
+    &GMPParent::ParseChromiumManifest, NS_ConvertUTF8toUTF16(json));
+}
+
+RefPtr<GenericPromise>
+GMPParent::ParseChromiumManifest(nsString aJSON)
+{
+  LOGD("%s: for '%s'", __FUNCTION__, NS_LossyConvertUTF16toASCII(aJSON).get());
+
+  MOZ_ASSERT(NS_IsMainThread());
+  mozilla::dom::WidevineCDMManifest m;
+  if (!m.Init(aJSON)) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  nsresult ignored; // Note: ToInteger returns 0 on failure.
+  if (!WidevineAdapter::Supports(m.mX_cdm_module_versions.ToInteger(&ignored),
+                                 m.mX_cdm_interface_versions.ToInteger(&ignored),
+                                 m.mX_cdm_host_versions.ToInteger(&ignored))) {
+    return GenericPromise::CreateAndReject(NS_ERROR_FAILURE, __func__);
+  }
+
+  mDisplayName = NS_ConvertUTF16toUTF8(m.mName);
+  mDescription = NS_ConvertUTF16toUTF8(m.mDescription);
+  mVersion = NS_ConvertUTF16toUTF8(m.mVersion);
+
+  GMPCapability video(NS_LITERAL_CSTRING(GMP_API_VIDEO_DECODER));
+  video.mAPITags.AppendElement(NS_LITERAL_CSTRING("h264"));
+  video.mAPITags.AppendElement(NS_LITERAL_CSTRING("vp8"));
+  video.mAPITags.AppendElement(NS_LITERAL_CSTRING("vp9"));
+  video.mAPITags.AppendElement(kEMEKeySystemWidevine);
+  mCapabilities.AppendElement(Move(video));
+
+  GMPCapability decrypt(NS_LITERAL_CSTRING(GMP_API_DECRYPTOR));
+  decrypt.mAPITags.AppendElement(kEMEKeySystemWidevine);
+  mCapabilities.AppendElement(Move(decrypt));
+
+  MOZ_ASSERT(mName.EqualsLiteral("widevinecdm"));
+  mAdapter = NS_LITERAL_STRING("widevine");
+#ifdef XP_WIN
+  mLibs = NS_LITERAL_CSTRING("dxva2.dll");
+#endif
+
+  return GenericPromise::CreateAndResolve(true, __func__);
+}
+
+bool
+GMPParent::CanBeSharedCrossNodeIds() const
+{
+  return !mAsyncShutdownInProgress &&
+         mNodeId.IsEmpty() &&
+         // XXX bug 1159300 hack -- maybe remove after openh264 1.4
+         // We don't want to use CDM decoders for non-encrypted playback
+         // just yet; especially not for WebRTC. Don't allow CDMs to be used
+         // without a node ID.
+         !mCanDecrypt;
+}
+
+bool
+GMPParent::CanBeUsedFrom(const nsACString& aNodeId) const
+{
+  return !mAsyncShutdownInProgress && mNodeId == aNodeId;
+}
+
+void
+GMPParent::SetNodeId(const nsACString& aNodeId)
+{
+  MOZ_ASSERT(!aNodeId.IsEmpty());
+  mNodeId = aNodeId;
+}
+
+const nsCString&
+GMPParent::GetDisplayName() const
+{
+  return mDisplayName;
+}
+
+const nsCString&
+GMPParent::GetVersion() const
+{
+  return mVersion;
+}
+
+uint32_t
+GMPParent::GetPluginId() const
+{
+  return mPluginId;
+}
+
+bool
+GMPParent::RecvAsyncShutdownRequired()
+{
+  LOGD("%s", __FUNCTION__);
+  if (mAsyncShutdownRequired) {
+    NS_WARNING("Received AsyncShutdownRequired message more than once!");
+    return true;
+  }
+  mAsyncShutdownRequired = true;
+  mService->AsyncShutdownNeeded(this);
+  return true;
+}
+
+bool
+GMPParent::RecvAsyncShutdownComplete()
+{
+  LOGD("%s", __FUNCTION__);
+
+  MOZ_ASSERT(mAsyncShutdownRequired);
+#if defined(MOZ_CRASHREPORTER)
+  if (mService) {
+    mService->SetAsyncShutdownPluginState(this, 'L',
+      NS_LITERAL_CSTRING("Received AsyncShutdownComplete"));
+  }
+#endif
+  AbortAsyncShutdown();
+  return true;
+}
+
+class RunCreateContentParentCallbacks : public Runnable
+{
+public:
+  explicit RunCreateContentParentCallbacks(GMPContentParent* aGMPContentParent)
+    : mGMPContentParent(aGMPContentParent)
+  {
+  }
+
+  void TakeCallbacks(nsTArray<UniquePtr<GetGMPContentParentCallback>>& aCallbacks)
+  {
+    mCallbacks.SwapElements(aCallbacks);
+  }
+
+  NS_IMETHOD
+  Run() override
+  {
+    for (uint32_t i = 0, length = mCallbacks.Length(); i < length; ++i) {
+      mCallbacks[i]->Done(mGMPContentParent);
+    }
+    return NS_OK;
+  }
+
+private:
+  RefPtr<GMPContentParent> mGMPContentParent;
+  nsTArray<UniquePtr<GetGMPContentParentCallback>> mCallbacks;
+};
+
+PGMPContentParent*
+GMPParent::AllocPGMPContentParent(Transport* aTransport, ProcessId aOtherPid)
+{
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+  MOZ_ASSERT(!mGMPContentParent);
+
+  mGMPContentParent = new GMPContentParent(this);
+  mGMPContentParent->Open(aTransport, aOtherPid, XRE_GetIOMessageLoop(),
+                          ipc::ParentSide);
+
+  RefPtr<RunCreateContentParentCallbacks> runCallbacks =
+    new RunCreateContentParentCallbacks(mGMPContentParent);
+  runCallbacks->TakeCallbacks(mCallbacks);
+  NS_DispatchToCurrentThread(runCallbacks);
+  MOZ_ASSERT(mCallbacks.IsEmpty());
+
+  return mGMPContentParent;
+}
+
+bool
+GMPParent::GetGMPContentParent(UniquePtr<GetGMPContentParentCallback>&& aCallback)
+{
+  LOGD("%s %p", __FUNCTION__, this);
+  MOZ_ASSERT(GMPThread() == NS_GetCurrentThread());
+
+  if (mGMPContentParent) {
+    aCallback->Done(mGMPContentParent);
+  } else {
+    mCallbacks.AppendElement(Move(aCallback));
+    // If we don't have a GMPContentParent and we try to get one for the first
+    // time (mCallbacks.Length() == 1) then call PGMPContent::Open. If more
+    // calls to GetGMPContentParent happen before mGMPContentParent has been
+    // set then we should just store them, so that they get called when we set
+    // mGMPContentParent as a result of the PGMPContent::Open call.
+    if (mCallbacks.Length() == 1) {
+      if (!EnsureProcessLoaded() || !PGMPContent::Open(this)) {
+        return false;
+      }
+      // We want to increment this as soon as possible, to avoid that we'd try
+      // to shut down the GMP process while we're still trying to get a
+      // PGMPContentParent actor.
+      ++mGMPContentChildCount;
+    }
+  }
+  return true;
+}
+
+already_AddRefed<GMPContentParent>
+GMPParent::ForgetGMPContentParent()
+{
+  MOZ_ASSERT(mCallbacks.IsEmpty());
+  return Move(mGMPContentParent.forget());
+}
+
+bool
+GMPParent::EnsureProcessLoaded(base::ProcessId* aID)
+{
+  if (!EnsureProcessLoaded()) {
+    return false;
+  }
+  *aID = OtherPid();
+  return true;
+}
+
+bool
+GMPParent::Bridge(GMPServiceParent* aGMPServiceParent)
+{
+  if (NS_FAILED(PGMPContent::Bridge(aGMPServiceParent, this))) {
+    return false;
+  }
+  ++mGMPContentChildCount;
+  return true;
+}
+
+nsString
+GMPParent::GetPluginBaseName() const
+{
+  return NS_LITERAL_STRING("gmp-") + mName;
+}
+
+} // namespace gmp
+} // namespace mozilla
+
+#undef LOG
+#undef LOGD