Route Pepper MediaSession messages to frames

content/browser/media/session/pepper_playback_observer.h

Index: content/browser/media/session/pepper_playback_observer.h
diff --git a/content/browser/media/session/pepper_playback_observer.h b/content/browser/media/session/pepper_playback_observer.h
index 9aacf007dbfbf084dbb8c5e91349e3318a882c57..f47aadd5cea7cadab3fd4f05fe331b15facc7366 100644
--- a/content/browser/media/session/pepper_playback_observer.h
+++ b/content/browser/media/session/pepper_playback_observer.h
@@ -8,12 +8,14 @@
 #include <stdint.h>
 #include <map>
 #include <memory>
+#include <utility>
 
 #include "base/macros.h"
 
 namespace content {
 
 class PepperPlayerDelegate;
+class RenderFrameHost;
 class WebContentsImpl;
 
 // Class observing Pepper playback changes from WebContents, and update
@@ -24,23 +26,29 @@ class PepperPlaybackObserver {
   explicit PepperPlaybackObserver(WebContentsImpl* contents);
   virtual ~PepperPlaybackObserver();
 
-  void PepperInstanceCreated(int32_t pp_instance);
-  void PepperInstanceDeleted(int32_t pp_instance);
+  void PepperInstanceCreated(RenderFrameHost* render_frame_host,
+                             int32_t pp_instance);
+  void PepperInstanceDeleted(RenderFrameHost* render_frame_host,
+                             int32_t pp_instance);
   // This method is called when a Pepper instance starts making sound.
-  void PepperStartsPlayback(int32_t pp_instance);
+  void PepperStartsPlayback(RenderFrameHost* render_frame_host,
+                            int32_t pp_instance);
   // This method is called when a Pepper instance stops making sound.
-  void PepperStopsPlayback(int32_t pp_instance);
+  void PepperStopsPlayback(RenderFrameHost* render_frame_host,
+                           int32_t pp_instance);
 
  private:
+  using PlayerId = std::pair<RenderFrameHost*, int32_t>;
+
   // Owning PepperPlayerDelegates.
   using PlayersMap =
-      std::map<int32_t, std::unique_ptr<PepperPlayerDelegate>>;
+      std::map<PlayerId, std::unique_ptr<PepperPlayerDelegate>>;
   PlayersMap players_map_;
 
   // Map for whether Pepper players have ever played sound.
   // Used for recording UMA.
   using PlayersPlayedSoundMap =
-      std::map<int32_t, bool>;
+      std::map<PlayerId, bool>;
   PlayersPlayedSoundMap players_played_sound_map_;
 
   // Weak reference to WebContents.