Pepper: Define PPB_VideoEncoder API + Implementation

ppapi/shared_impl/media_stream_buffer_manager.h

Index: ppapi/shared_impl/media_stream_buffer_manager.h
diff --git a/ppapi/shared_impl/media_stream_buffer_manager.h b/ppapi/shared_impl/media_stream_buffer_manager.h
index eafd10cc2e9a7007f6ae4398fd2291cb3fc860d3..f6b700e85866f0993984de6b8885978c27e4dc75 100644
--- a/ppapi/shared_impl/media_stream_buffer_manager.h
+++ b/ppapi/shared_impl/media_stream_buffer_manager.h
@@ -53,12 +53,17 @@ class PPAPI_SHARED_EXPORT MediaStreamBufferManager {
 
   int32_t buffer_size() const { return buffer_size_; }
 
+  base::SharedMemory* shm() { return shm_.get(); }
+
   // Initializes shared memory for buffers transmission.
   bool SetBuffers(int32_t number_of_buffers,
                   int32_t buffer_size,
                   scoped_ptr<base::SharedMemory> shm,
                   bool enqueue_all_buffers);
 
+  // Number of buffers available.
+  int32 BuffersAvailable();
+
   // Dequeues a buffer from |buffer_queue_|.
   int32_t DequeueBuffer();
 
@@ -71,6 +76,9 @@ class PPAPI_SHARED_EXPORT MediaStreamBufferManager {
   // Gets the buffer address for the given buffer index.
   MediaStreamBuffer* GetBufferPointer(int32_t index);
 
+  // Checks whether |buffer| is contains in the buffer manager.
+  bool ContainsBuffer(MediaStreamBuffer* buffer);
+
  private:
   Delegate* delegate_;