Add decoder de-initialize and reset to the Pepper CDM API.

ppapi/proxy/ppb_instance_proxy.h

Index: ppapi/proxy/ppb_instance_proxy.h
diff --git a/ppapi/proxy/ppb_instance_proxy.h b/ppapi/proxy/ppb_instance_proxy.h
index 61155b6dc30277de9e4dbee0024847e0dfccdbc2..97708dd2d238a186803b0f472ff87fea35da0bd6 100644
--- a/ppapi/proxy/ppb_instance_proxy.h
+++ b/ppapi/proxy/ppb_instance_proxy.h
@@ -136,6 +136,12 @@ class PPB_Instance_Proxy : public InterfaceProxy,
   virtual void DeliverBlock(PP_Instance instance,
                             PP_Resource decrypted_block,
                             const PP_DecryptedBlockInfo* block_info) OVERRIDE;
+  virtual void DecoderDeinitializeDone(PP_Instance instance,
+                                       PP_StreamType decoder_type,
+                                       uint32_t request_id) OVERRIDE;
+  virtual void DecoderResetDone(PP_Instance instance,
+                                PP_StreamType decoder_type,
+                                uint32_t request_id) OVERRIDE;
   virtual void DeliverFrame(PP_Instance instance,
                             PP_Resource decrypted_frame,
                             const PP_DecryptedFrameInfo* frame_info) OVERRIDE;
@@ -229,6 +235,12 @@ class PPB_Instance_Proxy : public InterfaceProxy,
                                  SerializedVarReceiveInput session_id,
                                  int32_t media_error,
                                  int32_t system_code);
+  virtual void OnHostMsgDecoderDeinitializeDone(PP_Instance instance,
+                                                PP_StreamType decoder_type,
+                                                uint32_t request_id);
+  virtual void OnHostMsgDecoderResetDone(PP_Instance instance,
+                                         PP_StreamType decoder_type,
+                                         uint32_t request_id);
   virtual void OnHostMsgDeliverBlock(PP_Instance instance,
                                      PP_Resource decrypted_block,
                                      const std::string& serialized_block_info);