Bug 1839916 - Update BrowsingContextWebProgress to hold BounceTrackingState objects. r=bvandersloot,nika

Differential Revision: https://phabricator.services.mozilla.com/D182342

docshell/base/BrowsingContextWebProgress.cpp

@@ -3,6 +3,8 @@
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "BrowsingContextWebProgress.h"
+#include "mozilla/AlreadyAddRefed.h"
+#include "mozilla/BounceTrackingState.h"
 #include "mozilla/dom/CanonicalBrowsingContext.h"
 #include "mozilla/ErrorNames.h"
 #include "mozilla/Logging.h"
@@ -12,6 +14,7 @@
 #include "nsPrintfCString.h"
 #include "nsIChannel.h"
 #include "xptinfo.h"
+#include "mozilla/RefPtr.h"
 
 namespace mozilla {
 namespace dom {
@@ -164,6 +167,14 @@ void BrowsingContextWebProgress::ContextReplaced(
   mCurrentBrowsingContext = aNewContext;
 }
 
+already_AddRefed<BounceTrackingState>
+BrowsingContextWebProgress::GetBounceTrackingState() {
+  if (!mBounceTrackingState) {
+    mBounceTrackingState = BounceTrackingState::GetOrCreate(this);
+  }
+  return do_AddRef(mBounceTrackingState);
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // nsIWebProgressListener
 

docshell/base/BrowsingContextWebProgress.h

@@ -10,6 +10,7 @@
 #include "nsTObserverArray.h"
 #include "nsWeakReference.h"
 #include "nsCycleCollectionParticipant.h"
+#include "mozilla/BounceTrackingState.h"
 
 namespace mozilla::dom {
 
@@ -61,6 +62,8 @@ class BrowsingContextWebProgress final : public nsIWebProgress,
 
   void SetLoadType(uint32_t aLoadType) { mLoadType = aLoadType; }
 
+  already_AddRefed<BounceTrackingState> GetBounceTrackingState();
+
  private:
   virtual ~BrowsingContextWebProgress();
 
@@ -91,6 +94,8 @@ class BrowsingContextWebProgress final : public nsIWebProgress,
   // discarded while loading a document to avoid noise caused by process
   // switches.
   bool mIsLoadingDocument = false;
+
+  RefPtr<mozilla::BounceTrackingState> mBounceTrackingState;
 };
 
 }  // namespace mozilla::dom

docshell/base/CanonicalBrowsingContext.cpp

@@ -3034,6 +3034,14 @@ CanonicalBrowsingContext::GetMostRecentLoadingSessionHistoryEntry() {
   return entry.forget();
 }
 
+already_AddRefed<BounceTrackingState>
+CanonicalBrowsingContext::GetBounceTrackingState() {
+  if (!mWebProgress) {
+    return nullptr;
+  }
+  return mWebProgress->GetBounceTrackingState();
+}
+
 NS_IMPL_CYCLE_COLLECTION_CLASS(CanonicalBrowsingContext)
 
 NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(CanonicalBrowsingContext,

docshell/base/CanonicalBrowsingContext.h

@@ -37,6 +37,7 @@ class nsITimer;
 
 namespace mozilla {
 enum class CallState;
+class BounceTrackingState;
 
 namespace embedding {
 class PrintData;
@@ -381,6 +382,8 @@ class CanonicalBrowsingContext final : public BrowsingContext {
 
   already_AddRefed<nsISHEntry> GetMostRecentLoadingSessionHistoryEntry();
 
+  already_AddRefed<BounceTrackingState> GetBounceTrackingState();
+
  protected:
   // Called when the browsing context is being discarded.
   void CanonicalDiscard();