rendering_helper - Wait for rendering before resetting the decoder.

content/common/gpu/media/rendering_helper.h

Index: content/common/gpu/media/rendering_helper.h
diff --git a/content/common/gpu/media/rendering_helper.h b/content/common/gpu/media/rendering_helper.h
index 826de05ac454b2d14fb54a04d07f46538f23f7a5..a3610f773e53379621b679f8a3c15e167d887b32 100644
--- a/content/common/gpu/media/rendering_helper.h
+++ b/content/common/gpu/media/rendering_helper.h
@@ -95,6 +95,11 @@ class RenderingHelper {
 
   void ClearVideoFrames(size_t window_id);
 
+  // Sets the callback who will be invoked when all pending video frames has
+  // been rendered.
+  void SetWaitRenderingCB(size_t window_id,
+                          const base::Closure& wait_rendering_cb);
+
   // Delete |texture_id|.
   void DeleteTexture(uint32 texture_id);