Expose flash playback status and volume control to content renderer

content/renderer/pepper/ppb_audio_impl.cc

Index: content/renderer/pepper/ppb_audio_impl.cc
diff --git a/content/renderer/pepper/ppb_audio_impl.cc b/content/renderer/pepper/ppb_audio_impl.cc
index 98bf7637f4ad96792b72cb90d7a995c0ca7ff284..39615625dc794dd51dadc675193b21793f99a200 100644
--- a/content/renderer/pepper/ppb_audio_impl.cc
+++ b/content/renderer/pepper/ppb_audio_impl.cc
@@ -9,7 +9,6 @@
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 #include "content/renderer/pepper/plugin_instance_throttler_impl.h"
 #include "content/renderer/render_frame_impl.h"
-#include "content/renderer/render_view_impl.h"
 #include "media/audio/audio_output_controller.h"
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/ppb_audio.h"
@@ -39,6 +38,8 @@ PPB_Audio_Impl::PPB_Audio_Impl(PP_Instance instance)
   if (plugin_instance && plugin_instance->throttler()) {
     plugin_instance->throttler()->AddObserver(this);
   }
+  static int32_t pepper_audio_id = 0;
+  pepper_audio_id_ = pepper_audio_id++;
 }
 
 PPB_Audio_Impl::~PPB_Audio_Impl() {
@@ -83,6 +84,10 @@ PP_Bool PPB_Audio_Impl::StartPlayback() {
     return PP_TRUE;
   }
 
+  RenderFrameImpl* render_frame = instance->render_frame();
+  if (render_frame)
+    render_frame->PepperStartsPlayback(instance, this);
+
   SetStartPlaybackState();
   return PP_FromBool(audio_->StartPlayback());
 }
@@ -97,6 +102,12 @@ PP_Bool PPB_Audio_Impl::StopPlayback() {
     StartDeferredPlayback();
   }
 
+  PepperPluginInstanceImpl* instance = static_cast<PepperPluginInstanceImpl*>(
+      PepperPluginInstance::Get(pp_instance()));

[bbudge, 2016/06/13 17:51:01]

Check for null instance, or add a CHECK or DCHECK if instance cannot be null.

[Zhiqiang Zhang (Slow), 2016/06/14 14:15:26]

Done.

+  RenderFrameImpl* render_frame = instance->render_frame();
+  if (render_frame)
+    render_frame->PepperStopsPlayback(instance, this);
+
   if (!playing())
     return PP_TRUE;
   if (!audio_->StopPlayback())
@@ -173,8 +184,17 @@ void PPB_Audio_Impl::StartDeferredPlayback() {
   DCHECK(playback_throttled_);
   playback_throttled_ = false;
 
+  PepperPluginInstanceImpl* instance = static_cast<PepperPluginInstanceImpl*>(
+      PepperPluginInstance::Get(pp_instance()));

[bbudge, 2016/06/13 17:51:01]

Ditto.

[Zhiqiang Zhang (Slow), 2016/06/14 14:15:25]

Done.

+  RenderFrameImpl* render_frame = instance->render_frame();
+  if (render_frame)
+    render_frame->PepperStartsPlayback(instance, this);
+
   SetStartPlaybackState();
   audio_->StartPlayback();
 }
 
+void PPB_Audio_Impl::SetVolume(double volume) {
+  audio_->SetVolume(volume);
+}
 }  // namespace content