Expose flash playback status and volume control to content renderer

content/renderer/pepper/pepper_plugin_instance_impl.h

Index: content/renderer/pepper/pepper_plugin_instance_impl.h
diff --git a/content/renderer/pepper/pepper_plugin_instance_impl.h b/content/renderer/pepper/pepper_plugin_instance_impl.h
index 1cc9ef8450981e4faae840f7dfd313a029a7e9af..f3089f0504256c6742bc4bc847c86754276a687a 100644
--- a/content/renderer/pepper/pepper_plugin_instance_impl.h
+++ b/content/renderer/pepper/pepper_plugin_instance_impl.h
@@ -106,6 +106,7 @@ namespace content {
 class ContentDecryptorDelegate;
 class FullscreenContainer;
 class MessageChannel;
+class PepperAudioController;
 class PepperCompositorHost;
 class PepperGraphics2DHost;
 class PluginInstanceThrottlerImpl;
@@ -557,6 +558,10 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
   void OnThrottleStateChange() override;
   void OnHiddenForPlaceholder(bool hidden) override;
 
+  PepperAudioController& audio_controller() {
+    return *audio_controller_;
+  }
+
  private:
   friend class base::RefCounted<PepperPluginInstanceImpl>;
   friend class PpapiPluginInstanceTest;
@@ -977,6 +982,9 @@ class CONTENT_EXPORT PepperPluginInstanceImpl
 
   bool initialized_;
 
+  // The controller for all active audios of this pepper instance.
+  std::unique_ptr<PepperAudioController> audio_controller_;
+
   // We use a weak ptr factory for scheduling DidChangeView events so that we
   // can tell whether updates are pending and consolidate them. When there's
   // already a weak ptr pending (HasWeakPtrs is true), code should update the