media: Support SetCdm() on VideoDecodeAccelerator interface.

content/common/gpu/media/gpu_video_decode_accelerator.h

Index: content/common/gpu/media/gpu_video_decode_accelerator.h
diff --git a/content/common/gpu/media/gpu_video_decode_accelerator.h b/content/common/gpu/media/gpu_video_decode_accelerator.h
index 2b2c3b7f0ba19460f382ac84046b156183e3dc86..ad1e142fc8b2c2238131d7fa7a0263f2ea97de73 100644
--- a/content/common/gpu/media/gpu_video_decode_accelerator.h
+++ b/content/common/gpu/media/gpu_video_decode_accelerator.h
@@ -38,19 +38,25 @@ class GpuVideoDecodeAccelerator
       GpuCommandBufferStub* stub,
       const scoped_refptr<base::SingleThreadTaskRunner>& io_task_runner);
 
+  // Static query for supported profiles. This query calls the appropriate
+  // platform-specific version. The returned supported profiles vector will
+  // not contain duplicates.
+  static gpu::VideoDecodeAcceleratorSupportedProfiles GetSupportedProfiles();
+
   // IPC::Listener implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // media::VideoDecodeAccelerator::Client implementation.
+  void NotifyCdmAttached(bool success) override;
   void ProvidePictureBuffers(uint32 requested_num_of_buffers,
                              const gfx::Size& dimensions,
                              uint32 texture_target) override;
   void DismissPictureBuffer(int32 picture_buffer_id) override;
   void PictureReady(const media::Picture& picture) override;
-  void NotifyError(media::VideoDecodeAccelerator::Error error) override;
   void NotifyEndOfBitstreamBuffer(int32 bitstream_buffer_id) override;
   void NotifyFlushDone() override;
   void NotifyResetDone() override;
+  void NotifyError(media::VideoDecodeAccelerator::Error error) override;
 
   // GpuCommandBufferStub::DestructionObserver implementation.
   void OnWillDestroyStub() override;
@@ -65,11 +71,6 @@ class GpuVideoDecodeAccelerator
   void Initialize(const media::VideoCodecProfile profile,
                   IPC::Message* init_done_msg);
 
-  // Static query for supported profiles. This query calls the appropriate
-  // platform-specific version. The returned supported profiles vector will
-  // not contain duplicates.
-  static gpu::VideoDecodeAcceleratorSupportedProfiles GetSupportedProfiles();
-
  private:
   typedef scoped_ptr<media::VideoDecodeAccelerator>(
       GpuVideoDecodeAccelerator::*CreateVDAFp)();
@@ -88,6 +89,7 @@ class GpuVideoDecodeAccelerator
   ~GpuVideoDecodeAccelerator() override;
 
   // Handlers for IPC messages.
+  void OnSetCdm(int cdm_id);
   void OnDecode(const AcceleratedVideoDecoderMsg_Decode_Params& params);
   void OnAssignPictureBuffers(const std::vector<int32>& buffer_ids,
                               const std::vector<uint32>& texture_ids);