1 files changed, 123 insertions, 0 deletions
diff --git a/docshell/base/LoadContext.h b/docshell/base/LoadContext.h
new file mode 100644
index 0000000000..966e7b47f4
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+++ b/docshell/base/LoadContext.h
@@ -0,0 +1,123 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef LoadContext_h
+#define LoadContext_h
+
+#include "SerializedLoadContext.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/BasePrincipal.h"
+#include "nsIWeakReferenceUtils.h"
+#include "mozilla/dom/Element.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsILoadContext.h"
+
+namespace mozilla {
+
+/**
+ * Class that provides nsILoadContext info in Parent process.  Typically copied
+ * from Child via SerializedLoadContext.
+ *
+ * Note: this is not the "normal" or "original" nsILoadContext.  That is
+ * typically provided by nsDocShell.  This is only used when the original
+ * docshell is in a different process and we need to copy certain values from
+ * it.
+ *
+ * Note: we also generate a new nsILoadContext using LoadContext(uint32_t aAppId)
+ * to separate the safebrowsing cookie.
+ */
+
+class LoadContext final
+  : public nsILoadContext
+  , public nsIInterfaceRequestor
+{
+public:
+  NS_DECL_ISUPPORTS
+  NS_DECL_NSILOADCONTEXT
+  NS_DECL_NSIINTERFACEREQUESTOR
+
+  // appId/inIsolatedMozBrowser arguments override those in SerializedLoadContext
+  // provided by child process.
+  LoadContext(const IPC::SerializedLoadContext& aToCopy,
+              dom::Element* aTopFrameElement,
+              DocShellOriginAttributes& aAttrs)
+    : mTopFrameElement(do_GetWeakReference(aTopFrameElement))
+    , mNestedFrameId(0)
+    , mIsContent(aToCopy.mIsContent)
+    , mUseRemoteTabs(aToCopy.mUseRemoteTabs)
+    , mOriginAttributes(aAttrs)
+#ifdef DEBUG
+    , mIsNotNull(aToCopy.mIsNotNull)
+#endif
+  {
+  }
+
+  // appId/inIsolatedMozBrowser arguments override those in SerializedLoadContext
+  // provided by child process.
+  LoadContext(const IPC::SerializedLoadContext& aToCopy,
+              uint64_t aNestedFrameId,
+              DocShellOriginAttributes& aAttrs)
+    : mTopFrameElement(nullptr)
+    , mNestedFrameId(aNestedFrameId)
+    , mIsContent(aToCopy.mIsContent)
+    , mUseRemoteTabs(aToCopy.mUseRemoteTabs)
+    , mOriginAttributes(aAttrs)
+#ifdef DEBUG
+    , mIsNotNull(aToCopy.mIsNotNull)
+#endif
+  {
+  }
+
+  LoadContext(dom::Element* aTopFrameElement,
+              bool aIsContent,
+              bool aUsePrivateBrowsing,
+              bool aUseRemoteTabs,
+              const DocShellOriginAttributes& aAttrs)
+    : mTopFrameElement(do_GetWeakReference(aTopFrameElement))
+    , mNestedFrameId(0)
+    , mIsContent(aIsContent)
+    , mUseRemoteTabs(aUseRemoteTabs)
+    , mOriginAttributes(aAttrs)
+#ifdef DEBUG
+    , mIsNotNull(true)
+#endif
+  {
+  }
+
+  // Constructor taking reserved origin attributes.
+  explicit LoadContext(DocShellOriginAttributes& aAttrs)
+    : mTopFrameElement(nullptr)
+    , mNestedFrameId(0)
+    , mIsContent(false)
+    , mUseRemoteTabs(false)
+    , mOriginAttributes(aAttrs)
+#ifdef DEBUG
+    , mIsNotNull(true)
+#endif
+  {
+  }
+
+  // Constructor for creating a LoadContext with a given principal's appId and
+  // browser flag.
+  explicit LoadContext(nsIPrincipal* aPrincipal,
+                       nsILoadContext* aOptionalBase = nullptr);
+
+private:
+  ~LoadContext() {}
+
+  nsWeakPtr mTopFrameElement;
+  uint64_t mNestedFrameId;
+  bool mIsContent;
+  bool mUseRemoteTabs;
+  DocShellOriginAttributes mOriginAttributes;
+#ifdef DEBUG
+  bool mIsNotNull;
+#endif
+};
+
+} // namespace mozilla
+
+#endif // LoadContext_h