Post GpuMemoryBufferVideoFramePool deletion on media thread

media/video/gpu_memory_buffer_video_frame_pool.h

Index: media/video/gpu_memory_buffer_video_frame_pool.h
diff --git a/media/video/gpu_memory_buffer_video_frame_pool.h b/media/video/gpu_memory_buffer_video_frame_pool.h
index ed4b3617e53cd39b0cf78d7f7dd7e6b9d16ddd47..aef6230687409ec6841edc7278950a9052813d5d 100644
--- a/media/video/gpu_memory_buffer_video_frame_pool.h
+++ b/media/video/gpu_memory_buffer_video_frame_pool.h
@@ -7,6 +7,7 @@
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
 #include "base/task_runner.h"
 #include "media/base/video_frame.h"
 
@@ -48,9 +49,12 @@ class MEDIA_EXPORT GpuMemoryBufferVideoFramePool {
       const scoped_refptr<VideoFrame>& video_frame,
       const FrameReadyCB& frame_ready_cb);
 
+  base::WeakPtr<GpuMemoryBufferVideoFramePool> GetWeakPtr();

[mcasas, 2016/02/11 15:40:41]

nit: for cases like this you can also make the class a
base::SupportsWeakPtr [1], although in this case it
might interact in funny ways with |pool_impl_| 
destruction.


[1]
https://code.google.com/p/chromium/codesearch#chromium/src/base/memory/weak_p...

+
  private:
   class PoolImpl;
   scoped_refptr<PoolImpl> pool_impl_;
+  base::WeakPtrFactory<GpuMemoryBufferVideoFramePool> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferVideoFramePool);
 };