Issue #1053 - Remove android support from XPCOM

30 files changed, 27 insertions, 476 deletions

diff --git a/xpcom/base/nsConsoleService.cpp b/xpcom/base/nsConsoleService.cpp
index 3862a02c4a..fccb8370fe 100644
--- a/xpcom/base/nsConsoleService.cpp
+++ b/xpcom/base/nsConsoleService.cpp
@@ -26,10 +26,6 @@
 
 #include "mozilla/Preferences.h"
 
-#if defined(ANDROID)
-#include <android/log.h>
-#include "mozilla/dom/ContentChild.h"
-#endif
 #ifdef XP_WIN
 #include <windows.h>
 #endif
@@ -51,9 +47,6 @@ NS_IMPL_CI_INTERFACE_GETTER(nsConsoleService, nsIConsoleService, nsIObserver)
 
 static bool sLoggingEnabled = true;
 static bool sLoggingBuffered = true;
-#if defined(ANDROID)
-static bool sLoggingLogcat = true;
-#endif // defined(ANDROID)
 
 nsConsoleService::MessageElement::~MessageElement()
 {
@@ -132,9 +125,6 @@ public:
   {
     Preferences::AddBoolVarCache(&sLoggingEnabled, "consoleservice.enabled", true);
     Preferences::AddBoolVarCache(&sLoggingBuffered, "consoleservice.buffered", true);
-#if defined(ANDROID)
-    Preferences::AddBoolVarCache(&sLoggingLogcat, "consoleservice.logcat", true);
-#endif // defined(ANDROID)
 
     nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
     MOZ_ASSERT(obs);
@@ -238,43 +228,6 @@ nsConsoleService::LogMessageWithMode(nsIConsoleMessage* aMessage,
   {
     MutexAutoLock lock(mLock);
 
-#if defined(ANDROID)
-    if (sLoggingLogcat && aOutputMode == OutputToLog) {
-      nsCString msg;
-      aMessage->ToString(msg);
-
-      /** Attempt to use the process name as the log tag. */
-      mozilla::dom::ContentChild* child =
-          mozilla::dom::ContentChild::GetSingleton();
-      nsCString appName;
-      if (child) {
-        child->GetProcessName(appName);
-      } else {
-        appName = "GeckoConsole";
-      }
-
-      uint32_t logLevel = 0;
-      aMessage->GetLogLevel(&logLevel);
-
-      android_LogPriority logPriority = ANDROID_LOG_INFO;
-      switch (logLevel) {
-        case nsIConsoleMessage::debug:
-          logPriority = ANDROID_LOG_DEBUG;
-          break;
-        case nsIConsoleMessage::info:
-          logPriority = ANDROID_LOG_INFO;
-          break;
-        case nsIConsoleMessage::warn:
-          logPriority = ANDROID_LOG_WARN;
-          break;
-        case nsIConsoleMessage::error:
-          logPriority = ANDROID_LOG_ERROR;
-          break;
-      }
-
-      __android_log_print(logPriority, appName.get(), "%s", msg.get());
-    }
-#endif
 #ifdef XP_WIN
     if (IsDebuggerPresent()) {
       nsString msg;
diff --git a/xpcom/base/nsConsoleService.h b/xpcom/base/nsConsoleService.h
index 089de81069..0aad5ccf44 100644
--- a/xpcom/base/nsConsoleService.h
+++ b/xpcom/base/nsConsoleService.h
@@ -45,8 +45,7 @@ public:
   }
 
   // This is a variant of LogMessage which allows the caller to determine
-  // if the message should be output to an OS-specific log. This is used on
-  // B2G to control whether the message is logged to the android log or not.
+  // if the message should be output to an OS-specific log.
 
   enum OutputMode {
     SuppressLog,
diff --git a/xpcom/base/nsDebugImpl.cpp b/xpcom/base/nsDebugImpl.cpp
index 84ba150dbe..313126e8a2 100644
--- a/xpcom/base/nsDebugImpl.cpp
+++ b/xpcom/base/nsDebugImpl.cpp
@@ -19,10 +19,6 @@
 #include "prerr.h"
 #include "prenv.h"
 
-#ifdef ANDROID
-#include <android/log.h>
-#endif
-
 #ifdef _WIN32
 /* for getenv() */
 #include <stdlib.h>
@@ -357,10 +353,6 @@ NS_DebugBreak(uint32_t aSeverity, const char* aStr, const char* aExpr,
   }
 #endif
 
-#ifdef ANDROID
-  __android_log_print(ANDROID_LOG_INFO, "Gecko", "%s", buf.buffer);
-#endif
-
   // Write the message to stderr unless it's a warning and MOZ_IGNORE_WARNINGS
   // is set.
   if (!(PR_GetEnv("MOZ_IGNORE_WARNINGS") && aSeverity == NS_DEBUG_WARNING)) {
diff --git a/xpcom/base/nsDumpUtils.cpp b/xpcom/base/nsDumpUtils.cpp
index c68862d08a..bef5b6fda9 100644
--- a/xpcom/base/nsDumpUtils.cpp
+++ b/xpcom/base/nsDumpUtils.cpp
@@ -343,12 +343,6 @@ FifoWatcher::OpenFd()
     return -1;
   }
 
-#ifdef ANDROID
-  // Android runs with a umask, so we need to chmod our fifo to make it
-  // world-writable.
-  chmod(path.get(), 0666);
-#endif
-
   int fd;
   do {
     // The fifo will block until someone else has written to it.  In
@@ -428,23 +422,11 @@ FifoWatcher::OnFileCanReadWithoutBlocking(int aFd)
 
 #endif // XP_UNIX }
 
-// In Android case, this function will open a file named aFilename under
-// /data/local/tmp/"aFoldername".
-// Otherwise, it will open a file named aFilename under "NS_OS_TEMP_DIR".
+// This will open a file named aFilename under "NS_OS_TEMP_DIR".
 /* static */ nsresult
 nsDumpUtils::OpenTempFile(const nsACString& aFilename, nsIFile** aFile,
                           const nsACString& aFoldername, Mode aMode)
 {
-#ifdef ANDROID
-  // For Android, first try the downloads directory which is world-readable
-  // rather than the temp directory which is not.
-  if (!*aFile) {
-    char* env = PR_GetEnv("DOWNLOADS_DIRECTORY");
-    if (env) {
-      NS_NewNativeLocalFile(nsCString(env), /* followLinks = */ true, aFile);
-    }
-  }
-#endif
   nsresult rv;
   if (!*aFile) {
     rv = NS_GetSpecialDirectory(NS_OS_TEMP_DIR, aFile);
@@ -453,32 +435,6 @@ nsDumpUtils::OpenTempFile(const nsACString& aFilename, nsIFile** aFile,
     }
   }
 
-#ifdef ANDROID
-  // /data/local/tmp is a true tmp directory; anyone can create a file there,
-  // but only the user which created the file can remove it.  We want non-root
-  // users to be able to remove these files, so we write them into a
-  // subdirectory of the temp directory and chmod 777 that directory.
-  if (aFoldername != EmptyCString()) {
-    rv = (*aFile)->AppendNative(aFoldername);
-    if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-    }
-
-    // It's OK if this fails; that probably just means that the directory
-    // already exists.
-    Unused << (*aFile)->Create(nsIFile::DIRECTORY_TYPE, 0777);
-
-    nsAutoCString dirPath;
-    rv = (*aFile)->GetNativePath(dirPath);
-    if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-    }
-
-    while (chmod(dirPath.get(), 0777) == -1 && errno == EINTR) {
-    }
-  }
-#endif
-
   nsCOMPtr<nsIFile> file(*aFile);
 
   rv = file->AppendNative(aFilename);
@@ -495,19 +451,5 @@ nsDumpUtils::OpenTempFile(const nsACString& aFilename, nsIFile** aFile,
     return rv;
   }
 
-#ifdef ANDROID
-  // Make this file world-read/writable; the permissions passed to the
-  // CreateUnique call above are not sufficient on Android, which runs with a
-  // umask.
-  nsAutoCString path;
-  rv = file->GetNativePath(path);
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-
-  while (chmod(path.get(), 0666) == -1 && errno == EINTR) {
-  }
-#endif
-
   return NS_OK;
 }
diff --git a/xpcom/base/nsDumpUtils.h b/xpcom/base/nsDumpUtils.h
index 12a99da18d..9bca559279 100644
--- a/xpcom/base/nsDumpUtils.h
+++ b/xpcom/base/nsDumpUtils.h
@@ -19,12 +19,7 @@
 #undef LOG
 #endif
 
-#ifdef ANDROID
-#include "android/log.h"
-#define LOG(...) __android_log_print(ANDROID_LOG_INFO, "Gecko:DumpUtils", ## __VA_ARGS__)
-#else
 #define LOG(...)
-#endif
 
 #ifdef XP_UNIX // {
 
@@ -189,9 +184,8 @@ public:
 
   /**
    * This function creates a new unique file based on |aFilename| in a
-   * world-readable temp directory. This is the system temp directory
-   * or, in the case of Android, the downloads directory. If |aFile| is
-   * non-null, it is assumed to point to a folder, and that folder is used
+   * world-readable temp directory. This is the system temp directory. 
+   * If |aFile| is non-null, it is assumed to point to a folder, and that folder is used
    * instead.
    */
   static nsresult OpenTempFile(const nsACString& aFilename,
diff --git a/xpcom/base/nsMemoryImpl.cpp b/xpcom/base/nsMemoryImpl.cpp
index 1d1576fbd4..b534e42f56 100644
--- a/xpcom/base/nsMemoryImpl.cpp
+++ b/xpcom/base/nsMemoryImpl.cpp
@@ -14,16 +14,6 @@
 #include "nsCOMPtr.h"
 #include "mozilla/Services.h"
 
-#ifdef ANDROID
-#include <stdio.h>
-
-// Minimum memory threshold for a device to be considered
-// a low memory platform. This value has be in sync with
-// Java's equivalent threshold, defined in
-// mobile/android/base/util/HardwareUtils.java
-#define LOW_MEMORY_THRESHOLD_KB (384 * 1024)
-#endif
-
 static nsMemoryImpl sGlobalMemory;
 
 NS_IMPL_QUERY_INTERFACE(nsMemoryImpl, nsIMemory)
@@ -37,31 +27,8 @@ nsMemoryImpl::HeapMinimize(bool aImmediate)
 NS_IMETHODIMP
 nsMemoryImpl::IsLowMemoryPlatform(bool* aResult)
 {
-#ifdef ANDROID
-  static int sLowMemory = -1; // initialize to unknown, lazily evaluate to 0 or 1
-  if (sLowMemory == -1) {
-    sLowMemory = 0; // assume "not low memory" in case file operations fail
-    *aResult = false;
-
-    // check if MemTotal from /proc/meminfo is less than LOW_MEMORY_THRESHOLD_KB
-    FILE* fd = fopen("/proc/meminfo", "r");
-    if (!fd) {
-      return NS_OK;
-    }
-    uint64_t mem = 0;
-    int rv = fscanf(fd, "MemTotal: %llu kB", &mem);
-    if (fclose(fd)) {
-      return NS_OK;
-    }
-    if (rv != 1) {
-      return NS_OK;
-    }
-    sLowMemory = (mem < LOW_MEMORY_THRESHOLD_KB) ? 1 : 0;
-  }
-  *aResult = (sLowMemory == 1);
-#else
   *aResult = false;
-#endif
+
   return NS_OK;
 }
 
diff --git a/xpcom/base/nsMemoryInfoDumper.cpp b/xpcom/base/nsMemoryInfoDumper.cpp
index afb18382d4..c2371a1c07 100644
--- a/xpcom/base/nsMemoryInfoDumper.cpp
+++ b/xpcom/base/nsMemoryInfoDumper.cpp
@@ -576,13 +576,6 @@ public:
       return rv;
     }
 
-  #ifdef ANDROID
-    rv = reportsFinalFile->AppendNative(NS_LITERAL_CSTRING("memory-reports"));
-    if (NS_WARN_IF(NS_FAILED(rv))) {
-      return rv;
-    }
-  #endif
-
     rv = reportsFinalFile->AppendNative(mReportsFilename);
     if (NS_WARN_IF(NS_FAILED(rv))) {
       return rv;
@@ -748,9 +741,8 @@ nsMemoryInfoDumper::DumpMemoryInfoToTempDir(const nsAString& aIdentifier,
 
   nsCOMPtr<nsIFile> reportsTmpFile;
   nsresult rv;
-  // In Android case, this function will open a file named aFilename under
-  // specific folder (/data/local/tmp/memory-reports). Otherwise, it will
-  // open a file named aFilename under "NS_OS_TEMP_DIR".
+
+  // This will open a file named aFilename under "NS_OS_TEMP_DIR".
   rv = nsDumpUtils::OpenTempFile(NS_LITERAL_CSTRING("incomplete-") +
                                  reportsFinalFilename,
                                  getter_AddRefs(reportsTmpFile),
diff --git a/xpcom/base/nsStatusReporterManager.cpp b/xpcom/base/nsStatusReporterManager.cpp
index 491e7d458b..42aa1f98b3 100644
--- a/xpcom/base/nsStatusReporterManager.cpp
+++ b/xpcom/base/nsStatusReporterManager.cpp
@@ -226,13 +226,6 @@ nsStatusReporterManager::DumpReports()
     return rv;
   }
 
-#ifdef ANDROID
-  rv = srFinalFile->AppendNative(NS_LITERAL_CSTRING("status-reports"));
-  if (NS_WARN_IF(NS_FAILED(rv))) {
-    return rv;
-  }
-#endif
-
   rv = srFinalFile->AppendNative(filename);
   if (NS_WARN_IF(NS_FAILED(rv))) {
     return rv;
diff --git a/xpcom/base/nsSystemInfo.cpp b/xpcom/base/nsSystemInfo.cpp
index 4a92a2eb40..f08346a85c 100644
--- a/xpcom/base/nsSystemInfo.cpp
+++ b/xpcom/base/nsSystemInfo.cpp
@@ -35,7 +35,7 @@
 #include <dlfcn.h>
 #endif
 
-#if defined (XP_LINUX) && !defined (ANDROID)
+#if defined (XP_LINUX)
 #include <unistd.h>
 #include <fstream>
 #include "mozilla/Tokenizer.h"
@@ -45,17 +45,6 @@
 #include <string>
 #endif
 
-#ifdef MOZ_WIDGET_ANDROID
-#include "AndroidBridge.h"
-#include "mozilla/dom/ContentChild.h"
-#endif
-
-#ifdef ANDROID
-extern "C" {
-NS_EXPORT int android_sdk_version;
-}
-#endif
-
 #ifdef XP_MACOSX
 #include <sys/sysctl.h>
 #endif
@@ -67,7 +56,7 @@ NS_EXPORT int android_sdk_version;
 // only happens well after that point.
 uint32_t nsSystemInfo::gUserUmask = 0;
 
-#if defined (XP_LINUX) && !defined (ANDROID)
+#ifdef XP_LINUX
 static void
 SimpleParseKeyValuePairs(const std::string& aFilename,
                          std::map<nsCString, nsCString>& aKeyValuePairs)
@@ -491,7 +480,7 @@ nsSystemInfo::Init()
   }
   MOZ_ASSERT(sizeof(sysctlValue32) == len);
 
-#elif defined (XP_LINUX) && !defined (ANDROID)
+#elif defined(XP_LINUX)
   // Get vendor, family, model, stepping, physical cores, L3 cache size
   // from /proc/cpuinfo file
   {
@@ -727,109 +716,9 @@ nsSystemInfo::Init()
   }
 #endif
 
-#ifdef MOZ_WIDGET_ANDROID
-  AndroidSystemInfo info;
-  if (XRE_IsContentProcess()) {
-    dom::ContentChild* child = dom::ContentChild::GetSingleton();
-    if (child) {
-      child->SendGetAndroidSystemInfo(&info);
-      SetupAndroidInfo(info);
-    }
-  } else {
-    GetAndroidSystemInfo(&info);
-    SetupAndroidInfo(info);
-  }
-#endif
-
   return NS_OK;
 }
 
-#ifdef MOZ_WIDGET_ANDROID
-// Prerelease versions of Android use a letter instead of version numbers.
-// Unfortunately this breaks websites due to the user agent.
-// Chrome works around this by hardcoding an Android version when a
-// numeric version can't be obtained. We're doing the same.
-// This version will need to be updated whenever there is a new official
-// Android release.
-// See: https://cs.chromium.org/chromium/src/base/sys_info_android.cc?l=61
-#define DEFAULT_ANDROID_VERSION "6.0.99"
-
-/* static */
-void
-nsSystemInfo::GetAndroidSystemInfo(AndroidSystemInfo* aInfo)
-{
-  MOZ_ASSERT(XRE_IsParentProcess());
-
-  if (!mozilla::AndroidBridge::Bridge()) {
-    aInfo->sdk_version() = 0;
-    return;
-  }
-
-  nsAutoString str;
-  if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
-      "android/os/Build", "MODEL", str)) {
-    aInfo->device() = str;
-  }
-  if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
-      "android/os/Build", "MANUFACTURER", str)) {
-    aInfo->manufacturer() = str;
-  }
-  if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
-      "android/os/Build$VERSION", "RELEASE", str)) {
-    int major_version;
-    int minor_version;
-    int bugfix_version;
-    int num_read = sscanf(NS_ConvertUTF16toUTF8(str).get(), "%d.%d.%d", &major_version, &minor_version, &bugfix_version);
-    if (num_read == 0) {
-      aInfo->release_version() = NS_LITERAL_STRING(DEFAULT_ANDROID_VERSION);
-    } else {
-      aInfo->release_version() = str;
-    }
-  }
-  if (mozilla::AndroidBridge::Bridge()->GetStaticStringField(
-      "android/os/Build", "HARDWARE", str)) {
-    aInfo->hardware() = str;
-  }
-  int32_t sdk_version;
-  if (!mozilla::AndroidBridge::Bridge()->GetStaticIntField(
-      "android/os/Build$VERSION", "SDK_INT", &sdk_version)) {
-    sdk_version = 0;
-  }
-  aInfo->sdk_version() = sdk_version;
-  aInfo->isTablet() = java::GeckoAppShell::IsTablet();
-}
-
-void
-nsSystemInfo::SetupAndroidInfo(const AndroidSystemInfo& aInfo)
-{
-  if (!aInfo.device().IsEmpty()) {
-    SetPropertyAsAString(NS_LITERAL_STRING("device"), aInfo.device());
-  }
-  if (!aInfo.manufacturer().IsEmpty()) {
-    SetPropertyAsAString(NS_LITERAL_STRING("manufacturer"), aInfo.manufacturer());
-  }
-  if (!aInfo.release_version().IsEmpty()) {
-    SetPropertyAsAString(NS_LITERAL_STRING("release_version"), aInfo.release_version());
-  }
-  SetPropertyAsBool(NS_LITERAL_STRING("tablet"), aInfo.isTablet());
-  // NSPR "version" is the kernel version. For Android we want the Android version.
-  // Rename SDK version to version and put the kernel version into kernel_version.
-  nsAutoString str;
-  nsresult rv = GetPropertyAsAString(NS_LITERAL_STRING("version"), str);
-  if (NS_SUCCEEDED(rv)) {
-    SetPropertyAsAString(NS_LITERAL_STRING("kernel_version"), str);
-  }
-  // When AndroidBridge is not available (eg. in xpcshell tests), sdk_version is 0.
-  if (aInfo.sdk_version() != 0) {
-    android_sdk_version = aInfo.sdk_version();
-    if (android_sdk_version >= 8 && !aInfo.hardware().IsEmpty()) {
-      SetPropertyAsAString(NS_LITERAL_STRING("hardware"), aInfo.hardware());
-    }
-    SetPropertyAsInt32(NS_LITERAL_STRING("version"), android_sdk_version);
-  }
-}
-#endif // MOZ_WIDGET_ANDROID
-
 void
 nsSystemInfo::SetInt32Property(const nsAString& aPropertyName,
                                const int32_t aValue)
diff --git a/xpcom/base/nsSystemInfo.h b/xpcom/base/nsSystemInfo.h
index 5a7ef44240..8e9263d3a2 100644
--- a/xpcom/base/nsSystemInfo.h
+++ b/xpcom/base/nsSystemInfo.h
@@ -12,10 +12,6 @@
 #include "nsIObserver.h"
 #endif // defined(XP_WIN)
 
-#ifdef MOZ_WIDGET_ANDROID
-#include "mozilla/dom/PContent.h"
-#endif // MOZ_WIDGET_ANDROID
-
 class nsSystemInfo final
   : public nsHashPropertyBag
 #if defined(XP_WIN)
@@ -36,12 +32,6 @@ public:
   // See comments above the variable definition and in NS_InitXPCOM2.
   static uint32_t gUserUmask;
 
-#ifdef MOZ_WIDGET_ANDROID
-  static void GetAndroidSystemInfo(mozilla::dom::AndroidSystemInfo* aInfo);
-  protected:
-    void SetupAndroidInfo(const mozilla::dom::AndroidSystemInfo&);
-#endif
-
 protected:
   void SetInt32Property(const nsAString& aPropertyName,
                         const int32_t aValue);
diff --git a/xpcom/base/nsUUIDGenerator.cpp b/xpcom/base/nsUUIDGenerator.cpp
index 254a013227..12fe4ec2ea 100644
--- a/xpcom/base/nsUUIDGenerator.cpp
+++ b/xpcom/base/nsUUIDGenerator.cpp
@@ -16,10 +16,6 @@
 
 #include "nsUUIDGenerator.h"
 
-#ifdef ANDROID
-extern "C" NS_EXPORT void arc4random_buf(void*, size_t);
-#endif
-
 using namespace mozilla;
 
 NS_IMPL_ISUPPORTS(nsUUIDGenerator, nsIUUIDGenerator)
diff --git a/xpcom/build/BinaryPath.h b/xpcom/build/BinaryPath.h
index 53034fcd85..a3ee5a5173 100644
--- a/xpcom/build/BinaryPath.h
+++ b/xpcom/build/BinaryPath.h
@@ -84,22 +84,6 @@ private:
     return rv;
   }
 
-#elif defined(ANDROID)
-  static nsresult Get(const char* argv0, char aResult[MAXPATHLEN])
-  {
-    // On Android, we use the GRE_HOME variable that is set by the Java
-    // bootstrap code.
-    const char* greHome = getenv("GRE_HOME");
-
-    if (!greHome) {
-      return NS_ERROR_FAILURE;
-    }
-
-    snprintf(aResult, MAXPATHLEN, "%s/%s", greHome, "dummy");
-    aResult[MAXPATHLEN - 1] = '\0';
-    return NS_OK;
-  }
-
 #elif defined(XP_UNIX)
   static nsresult Get(const char* aArgv0, char aResult[MAXPATHLEN])
   {
diff --git a/xpcom/build/XPCOMInit.cpp b/xpcom/build/XPCOMInit.cpp
index b89f51a98a..bb639248c0 100644
--- a/xpcom/build/XPCOMInit.cpp
+++ b/xpcom/build/XPCOMInit.cpp
@@ -569,13 +569,11 @@ NS_InitXPCOM2(nsIServiceManager** aResult,
     return rv;
   }
 
-#ifndef ANDROID
   // If the locale hasn't already been setup by our embedder,
   // get us out of the "C" locale and into the system
   if (strcmp(setlocale(LC_ALL, nullptr), "C") == 0) {
     setlocale(LC_ALL, "");
   }
-#endif
 
 #if defined(XP_UNIX)
   NS_StartupNativeCharsetUtils();
diff --git a/xpcom/build/XREChildData.h b/xpcom/build/XREChildData.h
index c849131d6d..7cda74d97f 100644
--- a/xpcom/build/XREChildData.h
+++ b/xpcom/build/XREChildData.h
@@ -20,13 +20,10 @@ class GMPLoader;
  */
 struct XREChildData
 {
-#if !defined(MOZ_WIDGET_ANDROID)
   /**
    * Used to load the GMP binary.
    */
   mozilla::UniquePtr<mozilla::gmp::GMPLoader> gmpLoader;
-#endif
-
 };
 
 #endif // XREChildData_h
diff --git a/xpcom/components/ManifestParser.cpp b/xpcom/components/ManifestParser.cpp
index 7188c0ec5d..b69a204baf 100644
--- a/xpcom/components/ManifestParser.cpp
+++ b/xpcom/components/ManifestParser.cpp
@@ -21,10 +21,6 @@
 #include <gtk/gtk.h>
 #endif
 
-#ifdef MOZ_WIDGET_ANDROID
-#include "AndroidBridge.h"
-#endif
-
 #include "mozilla/Services.h"
 
 #include "nsCRT.h"
@@ -478,9 +474,6 @@ ParseManifest(NSLocationType aType, FileLocation& aFile, char* aBuf,
   NS_NAMED_LITERAL_STRING(kOsVersion, "osversion");
   NS_NAMED_LITERAL_STRING(kABI, "abi");
   NS_NAMED_LITERAL_STRING(kProcess, "process");
-#if defined(MOZ_WIDGET_ANDROID)
-  NS_NAMED_LITERAL_STRING(kTablet, "tablet");
-#endif
 
   NS_NAMED_LITERAL_STRING(kMain, "main");
   NS_NAMED_LITERAL_STRING(kContent, "content");
@@ -557,14 +550,6 @@ ParseManifest(NSLocationType aType, FileLocation& aFile, char* aBuf,
   nsTextFormatter::ssprintf(osVersion, u"%ld.%ld",
                             gtk_major_version,
                             gtk_minor_version);
-#elif defined(MOZ_WIDGET_ANDROID)
-  bool isTablet = false;
-  if (mozilla::AndroidBridge::Bridge()) {
-    mozilla::AndroidBridge::Bridge()->GetStaticStringField("android/os/Build$VERSION",
-                                                           "RELEASE",
-                                                           osVersion);
-    isTablet = java::GeckoAppShell::IsTablet();
-  }
 #endif
 
   if (XRE_IsContentProcess()) {
@@ -665,9 +650,7 @@ ParseManifest(NSLocationType aType, FileLocation& aFile, char* aBuf,
     TriState stOs = eUnspecified;
     TriState stABI = eUnspecified;
     TriState stProcess = eUnspecified;
-#if defined(MOZ_WIDGET_ANDROID)
-    TriState stTablet = eUnspecified;
-#endif
+
     int flags = 0;
 
     while ((token = nsCRT::strtok(whitespace, kWhitespace, &whitespace)) &&
@@ -685,14 +668,6 @@ ParseManifest(NSLocationType aType, FileLocation& aFile, char* aBuf,
         continue;
       }
 
-#if defined(MOZ_WIDGET_ANDROID)
-      bool tablet = false;
-      if (CheckFlag(kTablet, wtoken, tablet)) {
-        stTablet = (tablet == isTablet) ? eOK : eBad;
-        continue;
-      }
-#endif
-
       if (directive->contentflags) {
         bool flag;
         if (CheckFlag(kPlatform, wtoken, flag)) {
@@ -737,9 +712,6 @@ ParseManifest(NSLocationType aType, FileLocation& aFile, char* aBuf,
         stGeckoVersion == eBad ||
         stOs == eBad ||
         stOsVersion == eBad ||
-#ifdef MOZ_WIDGET_ANDROID
-        stTablet == eBad ||
-#endif
         stABI == eBad ||
         stProcess == eBad) {
       continue;
diff --git a/xpcom/glue/FileUtils.cpp b/xpcom/glue/FileUtils.cpp
index 53fe687080..65a6c1e82a 100644
--- a/xpcom/glue/FileUtils.cpp
+++ b/xpcom/glue/FileUtils.cpp
@@ -226,7 +226,7 @@ mozilla::ReadAheadLib(nsIFile* aFile)
     return;
   }
   ReadAheadLib(path.get());
-#elif defined(LINUX) && !defined(ANDROID) || defined(XP_MACOSX)
+#elif defined(LINUX) || defined(XP_MACOSX)
   nsAutoCString nativePath;
   if (!aFile || NS_FAILED(aFile->GetNativePath(nativePath))) {
     return;
@@ -245,7 +245,7 @@ mozilla::ReadAheadFile(nsIFile* aFile, const size_t aOffset,
     return;
   }
   ReadAheadFile(path.get(), aOffset, aCount, aOutFd);
-#elif defined(LINUX) && !defined(ANDROID) || defined(XP_MACOSX)
+#elif defined(LINUX) || defined(XP_MACOSX)
   nsAutoCString nativePath;
   if (!aFile || NS_FAILED(aFile->GetNativePath(nativePath))) {
     return;
@@ -256,7 +256,7 @@ mozilla::ReadAheadFile(nsIFile* aFile, const size_t aOffset,
 
 #endif // !defined(XPCOM_GLUE)
 
-#if defined(LINUX) && !defined(ANDROID)
+#if defined(LINUX)
 
 static const unsigned int bufsize = 4096;
 
@@ -382,7 +382,7 @@ mozilla::ReadAhead(mozilla::filedesc_t aFd, const size_t aOffset,
   // Restore the file pointer
   SetFilePointerEx(aFd, fpOriginal, nullptr, FILE_BEGIN);
 
-#elif defined(LINUX) && !defined(ANDROID)
+#elif defined(LINUX)
 
   readahead(aFd, aOffset, aCount);
 
@@ -405,7 +405,7 @@ mozilla::ReadAheadLib(mozilla::pathstr_t aFilePath)
   }
 #if defined(XP_WIN)
   ReadAheadFile(aFilePath);
-#elif defined(LINUX) && !defined(ANDROID)
+#elif defined(LINUX)
   int fd = open(aFilePath, O_RDONLY);
   if (fd < 0) {
     return;
@@ -532,7 +532,7 @@ mozilla::ReadAheadFile(mozilla::pathstr_t aFilePath, const size_t aOffset,
   if (!aOutFd) {
     CloseHandle(fd);
   }
-#elif defined(LINUX) && !defined(ANDROID) || defined(XP_MACOSX) || defined(XP_SOLARIS)
+#elif defined(LINUX) || defined(XP_MACOSX) || defined(XP_SOLARIS)
   if (!aFilePath) {
     if (aOutFd) {
       *aOutFd = -1;
diff --git a/xpcom/glue/nsCRTGlue.cpp b/xpcom/glue/nsCRTGlue.cpp
index 03c77da2b9..4cf68df2ec 100644
--- a/xpcom/glue/nsCRTGlue.cpp
+++ b/xpcom/glue/nsCRTGlue.cpp
@@ -22,11 +22,6 @@
 #include "mozilla/UniquePtr.h"
 #endif
 
-#ifdef ANDROID
-#include <android/log.h>
-#include <unistd.h>
-#endif
-
 using namespace mozilla;
 
 const char*
@@ -365,20 +360,6 @@ vprintf_stderr(const char* aFmt, va_list aArgs)
 
   fclose(fp);
 }
-
-#elif defined(ANDROID)
-void
-vprintf_stderr(const char* aFmt, va_list aArgs)
-{
-  if (sStderrCallback) {
-    va_list argsCpy;
-    VARARGS_ASSIGN(argsCpy, aArgs);
-    sStderrCallback(aFmt, aArgs);
-    va_end(argsCpy);
-  }
-
-  __android_log_vprint(ANDROID_LOG_INFO, "Gecko", aFmt, aArgs);
-}
 #else
 void
 vprintf_stderr(const char* aFmt, va_list aArgs)
diff --git a/xpcom/glue/standalone/nsXPCOMGlue.cpp b/xpcom/glue/standalone/nsXPCOMGlue.cpp
index b657d7050e..73cbc179e9 100644
--- a/xpcom/glue/standalone/nsXPCOMGlue.cpp
+++ b/xpcom/glue/standalone/nsXPCOMGlue.cpp
@@ -80,7 +80,7 @@ CloseLibHandle(LibHandleType aLibHandle)
 #else
 #include <dlfcn.h>
 
-#if defined(MOZ_LINKER) && !defined(ANDROID)
+#ifdef MOZ_LINKER
 extern "C" {
 NS_HIDDEN __typeof(dlopen) __wrap_dlopen;
 NS_HIDDEN __typeof(dlsym) __wrap_dlsym;
diff --git a/xpcom/io/SpecialSystemDirectory.cpp b/xpcom/io/SpecialSystemDirectory.cpp
index 158431088a..c174b4ac73 100644
--- a/xpcom/io/SpecialSystemDirectory.cpp
+++ b/xpcom/io/SpecialSystemDirectory.cpp
@@ -187,13 +187,8 @@ GetRegWindowsAppDataFolder(bool aLocal, nsIFile** aFile)
 static nsresult
 GetUnixHomeDir(nsIFile** aFile)
 {
-#if defined(ANDROID)
-  // XXX no home dir on android; maybe we should return the sdcard if present?
-  return NS_ERROR_FAILURE;
-#else
   return NS_NewNativeLocalFile(nsDependentCString(PR_GetEnv("HOME")),
                                true, aFile);
-#endif
 }
 
 /*
diff --git a/xpcom/io/nsLocalFileUnix.cpp b/xpcom/io/nsLocalFileUnix.cpp
index 06706235d0..48f2786a73 100644
--- a/xpcom/io/nsLocalFileUnix.cpp
+++ b/xpcom/io/nsLocalFileUnix.cpp
@@ -62,12 +62,6 @@
 static nsresult MacErrorMapper(OSErr inErr);
 #endif
 
-#ifdef MOZ_WIDGET_ANDROID
-#include "GeneratedJNIWrappers.h"
-#include "nsIMIMEService.h"
-#include <linux/magic.h>
-#endif
-
 #ifdef MOZ_ENABLE_CONTENTACTION
 #include <contentaction/contentaction.h>
 #endif
@@ -1064,12 +1058,6 @@ nsLocalFile::Remove(bool aRecursive)
       }
       rv = file->Remove(aRecursive);
 
-#ifdef ANDROID
-      // See bug 580434 - Bionic gives us just deleted files
-      if (rv == NS_ERROR_FILE_TARGET_DOES_NOT_EXIST) {
-        continue;
-      }
-#endif
       if (NS_FAILED(rv)) {
         return rv;
       }
@@ -1193,19 +1181,7 @@ nsLocalFile::SetPermissions(uint32_t aPermissions)
   if (chmod(mPath.get(), aPermissions) >= 0) {
     return NS_OK;
   }
-#if defined(ANDROID) && defined(STATFS)
-  // For the time being, this is restricted for use by Android, but we
-  // will figure out what to do for all platforms in bug 638503
-  struct STATFS sfs;
-  if (STATFS(mPath.get(), &sfs) < 0) {
-    return NSRESULT_FOR_ERRNO();
-  }
 
-  // if this is a FAT file system we can't set file permissions
-  if (sfs.f_type == MSDOS_SUPER_MAGIC) {
-    return NS_OK;
-  }
-#endif
   return NSRESULT_FOR_ERRNO();
 }
 
@@ -1237,20 +1213,7 @@ nsLocalFile::SetFileSize(int64_t aFileSize)
 {
   CHECK_mPath();
 
-#if defined(ANDROID)
-  /* no truncate on bionic */
-  int fd = open(mPath.get(), O_WRONLY);
-  if (fd == -1) {
-    return NSRESULT_FOR_ERRNO();
-  }
-
-  int ret = ftruncate(fd, (off_t)aFileSize);
-  close(fd);
-
-  if (ret == -1) {
-    return NSRESULT_FOR_ERRNO();
-  }
-#elif defined(HAVE_TRUNCATE64)
+#if defined(HAVE_TRUNCATE64)
   if (truncate64(mPath.get(), (off64_t)aFileSize) == -1) {
     return NSRESULT_FOR_ERRNO();
   }
@@ -2013,23 +1976,6 @@ nsLocalFile::Launch()
   }
 
   return NS_ERROR_FAILURE;
-#elif defined(MOZ_WIDGET_ANDROID)
-  // Try to get a mimetype, if this fails just use the file uri alone
-  nsresult rv;
-  nsAutoCString type;
-  nsCOMPtr<nsIMIMEService> mimeService(do_GetService("@mozilla.org/mime;1", &rv));
-  if (NS_SUCCEEDED(rv)) {
-    rv = mimeService->GetTypeFromFile(this, type);
-  }
-
-  nsAutoCString fileUri = NS_LITERAL_CSTRING("file://") + mPath;
-  return java::GeckoAppShell::OpenUriExternal(
-    NS_ConvertUTF8toUTF16(fileUri),
-    NS_ConvertUTF8toUTF16(type),
-    EmptyString(),
-    EmptyString(),
-    EmptyString(),
-    EmptyString()) ? NS_OK : NS_ERROR_FAILURE;
 #elif defined(MOZ_WIDGET_COCOA)
   CFURLRef url;
   if (NS_SUCCEEDED(GetCFURL(&url))) {
diff --git a/xpcom/io/nsNativeCharsetUtils.cpp b/xpcom/io/nsNativeCharsetUtils.cpp
index e53307af56..fcc2082649 100644
--- a/xpcom/io/nsNativeCharsetUtils.cpp
+++ b/xpcom/io/nsNativeCharsetUtils.cpp
@@ -7,9 +7,9 @@
 #include "xpcom-private.h"
 
 //-----------------------------------------------------------------------------
-// XP_MACOSX or ANDROID
+// XP_MACOSX
 //-----------------------------------------------------------------------------
-#if defined(XP_MACOSX) || defined(ANDROID)
+#if defined(XP_MACOSX)
 
 #include "nsAString.h"
 #include "nsReadableUtils.h"
diff --git a/xpcom/io/nsNativeCharsetUtils.h b/xpcom/io/nsNativeCharsetUtils.h
index 5c1e670d5e..c3053a7df8 100644
--- a/xpcom/io/nsNativeCharsetUtils.h
+++ b/xpcom/io/nsNativeCharsetUtils.h
@@ -39,13 +39,13 @@ nsresult NS_CopyUnicodeToNative(const nsAString& aInput, nsACString& aOutput);
  * a real function. On Mac OS X it's always UTF-8 while on Windows
  * and other platforms (e.g. OS2), it's never UTF-8.
  */
-#if defined(XP_UNIX) && !defined(XP_MACOSX) && !defined(ANDROID)
+#if defined(XP_UNIX) && !defined(XP_MACOSX)
 bool NS_IsNativeUTF8();
 #else
 inline bool
 NS_IsNativeUTF8()
 {
-#if defined(XP_MACOSX) || defined(ANDROID)
+#if defined(XP_MACOSX)
   return true;
 #else
   return false;
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp b/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp
index 4cd5eb47d8..ef725e5e32 100644
--- a/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_arm.cpp
@@ -9,7 +9,7 @@
 
 #include "mozilla/Compiler.h"
 
-#if !defined(__arm__) && !(defined(LINUX) || defined(ANDROID) || defined(XP_IOS))
+#if !defined(__arm__) && !(defined(LINUX) || defined(XP_IOS))
 #error "This code is for Linux/iOS ARM only. Check that it works on your system, too.\nBeware that this code is highly compiler dependent."
 #endif
 
diff --git a/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_mips.S b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_mips.S
index 32ff3b3565..9fd99faa6a 100644
--- a/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_mips.S
+++ b/xpcom/reflect/xptcall/md/unix/xptcinvoke_asm_mips.S
@@ -7,14 +7,8 @@
 
 /* This code is for MIPS using the O32 ABI. */
 
-#ifdef ANDROID
-#include <asm/regdef.h>
-#include <asm/asm.h>
-#include <machine/asm.h>
-#else
 #include <sys/regdef.h>
 #include <sys/asm.h>
-#endif
 
 # NARGSAVE is the argument space in the callers frame, including extra
 # 'shadowed' space for the argument registers. The minimum of 4
diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_arm.cpp b/xpcom/reflect/xptcall/md/unix/xptcstubs_arm.cpp
index ef4f8514d9..78664dfcfb 100644
--- a/xpcom/reflect/xptcall/md/unix/xptcstubs_arm.cpp
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_arm.cpp
@@ -8,7 +8,7 @@
 #include "xptcprivate.h"
 #include "xptiprivate.h"
 
-#if !defined(__arm__) && !(defined(LINUX) || defined(ANDROID) || defined(XP_DARWIN))
+#if !defined(__arm__) && !(defined(LINUX) || defined(XP_DARWIN))
 #error "This code is for Linux/iOS ARM only. Please check if it works for you, too.\nDepends strongly on gcc behaviour."
 #endif
 
diff --git a/xpcom/reflect/xptcall/md/unix/xptcstubs_asm_mips.S b/xpcom/reflect/xptcall/md/unix/xptcstubs_asm_mips.S
index d17301634e..ebfba775ab 100644
--- a/xpcom/reflect/xptcall/md/unix/xptcstubs_asm_mips.S
+++ b/xpcom/reflect/xptcall/md/unix/xptcstubs_asm_mips.S
@@ -5,14 +5,8 @@
 
 /* This code is for MIPS using the O32 ABI. */
 
-#ifdef ANDROID
-#include <asm/regdef.h>
-#include <asm/asm.h>
-#include <machine/asm.h>
-#else
 #include <sys/regdef.h>
 #include <sys/asm.h>
-#endif
 
 # NARGSAVE is the argument space in the callers frame, including extra
 # 'shadowed' space for the argument registers. The minimum of 4
diff --git a/xpcom/tests/gtest/TestTArray2.cpp b/xpcom/tests/gtest/TestTArray2.cpp
index 421927104b..c932b8faab 100644
--- a/xpcom/tests/gtest/TestTArray2.cpp
+++ b/xpcom/tests/gtest/TestTArray2.cpp
@@ -871,8 +871,6 @@ TEST(TArray, test_swap) {
   }
 }
 
-// Bug 1171296: Disabled on andoid due to crashes.
-#if !defined(ANDROID)
 TEST(TArray, test_fallible)
 {
   // Test that FallibleTArray works properly; that is, it never OOMs, but
@@ -909,7 +907,6 @@ TEST(TArray, test_fallible)
   ASSERT_TRUE(oomed) << "Didn't OOM or crash?  nsTArray::SetCapacity"
                         "must be lying.";
 }
-#endif
 
 TEST(TArray, test_conversion_operator) {
   FallibleTArray<int> f;
diff --git a/xpcom/tests/gtest/moz.build b/xpcom/tests/gtest/moz.build
index ac98c22176..4ed242d034 100644
--- a/xpcom/tests/gtest/moz.build
+++ b/xpcom/tests/gtest/moz.build
@@ -48,9 +48,8 @@ UNIFIED_SOURCES += [
     'TestXPIDLString.cpp',
 ]
 
-if CONFIG['MOZ_DEBUG'] and CONFIG['OS_ARCH'] not in ('WINNT') and CONFIG['OS_TARGET'] != 'Android':
+if CONFIG['MOZ_DEBUG'] and CONFIG['OS_ARCH'] not in ('WINNT'):
     # FIXME bug 523392: TestDeadlockDetector doesn't like Windows
-    # Bug 1054249: Doesn't work on Android
     UNIFIED_SOURCES += [
         'TestDeadlockDetector.cpp',
         'TestDeadlockDetectorScalability.cpp',
diff --git a/xpcom/threads/ThreadStackHelper.cpp b/xpcom/threads/ThreadStackHelper.cpp
index 2c0e879866..88a0360ef4 100644
--- a/xpcom/threads/ThreadStackHelper.cpp
+++ b/xpcom/threads/ThreadStackHelper.cpp
@@ -46,19 +46,6 @@
 #include <pthread.h>
 #endif
 
-#ifdef ANDROID
-#ifndef SYS_gettid
-#define SYS_gettid __NR_gettid
-#endif
-#if defined(__arm__) && !defined(__NR_rt_tgsigqueueinfo)
-// Some NDKs don't define this constant even though the kernel supports it.
-#define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
-#endif
-#ifndef SYS_rt_tgsigqueueinfo
-#define SYS_rt_tgsigqueueinfo __NR_rt_tgsigqueueinfo
-#endif
-#endif
-
 namespace mozilla {
 
 void
diff --git a/xpcom/threads/nsThread.h b/xpcom/threads/nsThread.h
index 037ef1952f..c1b3d26185 100644
--- a/xpcom/threads/nsThread.h
+++ b/xpcom/threads/nsThread.h
@@ -264,7 +264,7 @@ protected:
   bool mCanInvokeJS;
 };
 
-#if defined(XP_UNIX) && !defined(ANDROID) && !defined(DEBUG) && HAVE_UALARM \
+#if defined(XP_UNIX) && !defined(DEBUG) && HAVE_UALARM \
   && defined(_GNU_SOURCE)
 # define MOZ_CANARY