Revert hardware decoder changes causing ChromeOS HW test crash.

media/blink/video_frame_compositor.cc

 // Copyright 2014 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 "media/blink/video_frame_compositor.h"
 
 #include "media/base/video_frame.h"
 
 namespace media {
 
 static bool IsOpaque(const scoped_refptr<VideoFrame>& frame) {
   switch (frame->format()) {
     case VideoFrame::UNKNOWN:
     case VideoFrame::YV12:
     case VideoFrame::YV12J:
     case VideoFrame::YV16:
     case VideoFrame::I420:
     case VideoFrame::YV24:
     case VideoFrame::NV12:
       return true;
 
     case VideoFrame::YV12A:
 #if defined(VIDEO_HOLE)
     case VideoFrame::HOLE:
 #endif  // defined(VIDEO_HOLE)
     case VideoFrame::NATIVE_TEXTURE:
-    case VideoFrame::ARGB:
       break;
   }
   return false;
 }
 
 VideoFrameCompositor::VideoFrameCompositor(
     const base::Callback<void(gfx::Size)>& natural_size_changed_cb,
     const base::Callback<void(bool)>& opacity_changed_cb)
     : natural_size_changed_cb_(natural_size_changed_cb),
       opacity_changed_cb_(opacity_changed_cb),
@@ skipping 31 matching lines @@
     opacity_changed_cb_.Run(IsOpaque(frame));
   }
 
   current_frame_ = frame;
 
   if (client_)
     client_->DidReceiveFrame();
 }
 
 }  // namespace media