PPAPI: Fix interface functions that take PP_CompletionCallbacks, but don't

ppapi/cpp/dev/video_decoder_dev.h

 // Copyright (c) 2011 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 PPAPI_CPP_DEV_VIDEO_DECODER_DEV_H_
 #define PPAPI_CPP_DEV_VIDEO_DECODER_DEV_H_
 
 #include <vector>
 
 #include "ppapi/c/dev/pp_video_dev.h"
@@ skipping 36 matching lines @@
 
     // Callback to notify about decoding errors.
     virtual void NotifyError(PP_VideoDecodeError_Dev error) = 0;
   };
 
   // Constructor for the video decoder. Calls the Create on the
   // PPB_VideoDecoder_Dev interface.
   //
   // Parameters:
   //  |instance| is the pointer to the plug-in instance.
-  //  |config| is the configuration on which the decoder should be initialized.
   //  |callback| will be called when decoder is initialized.
   //  |client| is the pointer to the client object. Ownership of the object is
   //  not transferred and it must outlive the lifetime of this class.
-  VideoDecoder(const Instance* instance,
-               const PP_VideoConfigElement* config,
-               CompletionCallback callback, Client* client);
+  VideoDecoder(const Instance* instance, Client* client);
   ~VideoDecoder();
 
+  // Initializates the video decoder with a requested configuration.
+  // Calls Init() on PPB_VideoDecoder_Dev interface.
+  //
+  // Parameters:
+  //  |config| is the configuration on which the decoder should be initialized.
+  //  |callback| will be called when decoder is initialized.
+  int32_t Initialize(const PP_VideoConfigElement* config,
+                     CompletionCallback callback);
+
   // GetConfigs returns supported configurations that are subsets of given
   // |prototype_config|.
   bool GetConfigs(Instance* instance,
                   const PP_VideoConfigElement* prototype_config,
                   PP_VideoConfigElement* matching_configs,
                   uint32_t matching_configs_size,
                   uint32_t* num_of_matching_configs);
 
   // Provides the decoder with picture buffers for video decoding.
   // AssignGLESBuffers provides texture-backed buffers, whereas
   // AssignSysmemBuffers provides system memory-backed buffers.
   void AssignGLESBuffers(const std::vector<PP_GLESBuffer_Dev>& buffers);
   void AssignSysmemBuffers(const std::vector<PP_SysmemBuffer_Dev>& buffers);
 
   // Decodes given bitstream buffer. Once decoder is done with processing
   // |bitstream_buffer| is will call |callback| with provided user data.
-  bool Decode(const PP_VideoBitstreamBuffer_Dev& bitstream_buffer,
-              CompletionCallback callback);
+  int32_t Decode(const PP_VideoBitstreamBuffer_Dev& bitstream_buffer,
+                 CompletionCallback callback);
 
   // Tells the decoder to reuse given picture buffer.
   void ReusePictureBuffer(int32_t picture_buffer_id);
 
   // Flushes the decoder. |callback| will be called as soon as Flush has been
   // finished.
-  bool Flush(CompletionCallback callback);
+  int32_t Flush(CompletionCallback callback);
 
   // Dispatches abortion request to the decoder to abort decoding as soon as
   // possible. |callback| will be called as soon as abortion has been finished.
-  bool Abort(CompletionCallback callback);
+  int32_t Abort(CompletionCallback callback);
 
  private:
   // Pointer to the plugin's video decoder support interface for providing the
   // buffers for video decoding.
   Client* client_;
 
   // Suppress compiler-generated copy constructors.
   VideoDecoder(const VideoDecoder&);
   void operator=(const VideoDecoder&);
 };
 
 }  // namespace pp
 
 #endif  // PPAPI_CPP_DEV_VIDEO_DECODER_DEV_H_