rendering_helper - Wait for rendering before resetting the decoder.

content/common/gpu/media/rendering_helper.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_COMMON_GPU_MEDIA_RENDERING_HELPER_H_
 #define CONTENT_COMMON_GPU_MEDIA_RENDERING_HELPER_H_
 
 #include <deque>
 #include <map>
 #include <vector>
@@ skipping 77 matching lines @@
 
   // Render thumbnail in the |texture_id| to the FBO buffer using target
   // |texture_target|.
   void RenderThumbnail(uint32 texture_target, uint32 texture_id);
 
   // Queues the VideoFrame for rendering.
   void QueueVideoFrame(size_t window_id, scoped_ptr<VideoFrame> video_frame);
 
   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);
 
   // Get the platform specific handle to the OpenGL display.
   void* GetGLDisplay();
 
   // Get the platform specific handle to the OpenGL context.
   void* GetGLContext();
 
   // Get rendered thumbnails as RGB.
@@ skipping 43 matching lines @@
   gfx::Size thumbnail_size_;
   GLuint program_;
   base::TimeDelta frame_duration_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderingHelper);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_COMMON_GPU_MEDIA_RENDERING_HELPER_H_