gpu: Optimize and cleanup code used for CHROMIUM_copy_texture.

content/common/gpu/media/android_video_decode_accelerator.cc

 // Copyright (c) 2013 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.
 
 #include "content/common/gpu/media/android_video_decode_accelerator.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 340 matching lines @@
   }
 
   // Here, we copy |surface_texture_id_| to the picture buffer instead of
   // setting new texture to |surface_texture_| by calling attachToGLContext()
   // because:
   // 1. Once we call detachFrameGLContext(), it deletes the texture previous
   //    attached.
   // 2. SurfaceTexture requires us to apply a transform matrix when we show
   //    the texture.
   copier_->DoCopyTexture(gl_decoder_.get(), GL_TEXTURE_EXTERNAL_OES,
-                         GL_TEXTURE_2D, surface_texture_id_,
-                         picture_buffer_texture_id, 0, size_.width(),
+                         surface_texture_id_, picture_buffer_texture_id,
+                         0, GL_RGBA, size_.width(),
                          size_.height(), false, false, false);
 
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&AndroidVideoDecodeAccelerator::NotifyPictureReady,
                  weak_this_factory_.GetWeakPtr(),
                  media::Picture(picture_buffer_id, bitstream_id)));
 }
 
 void AndroidVideoDecodeAccelerator::Decode(
@@ skipping 166 matching lines @@
 void AndroidVideoDecodeAccelerator::NotifyResetDone() {
   client_->NotifyResetDone();
 }
 
 void AndroidVideoDecodeAccelerator::NotifyError(
     media::VideoDecodeAccelerator::Error error) {
   client_->NotifyError(error);
 }
 
 }  // namespace content