Don't attempt to use NV12 with hardware decoding in Flash.

content/renderer/pepper/ppb_video_decoder_impl.cc

 // Copyright (c) 2012 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/renderer/pepper/ppb_video_decoder_impl.h"
 
 #include <string>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 113 matching lines @@
   if (!command_buffer)
     return false;
 
   InitCommon(graphics_context, graphics_3d->gles2_impl());
   FlushCommandBuffer();
 
   // This is not synchronous, but subsequent IPC messages will be buffered, so
   // it is okay to immediately send IPC messages.
   if (command_buffer->channel()) {
     decoder_.reset(new media::GpuVideoDecodeAcceleratorHost(command_buffer));
-    return decoder_->Initialize(PPToMediaProfile(profile), this);
+    media::VideoDecodeAccelerator::Config config(PPToMediaProfile(profile));
+    config.supported_output_formats.assign(
+        {media::PIXEL_FORMAT_XRGB, media::PIXEL_FORMAT_ARGB});
+    return decoder_->Initialize(config, this);
   }
   return false;
 }
 
 const PPP_VideoDecoder_Dev* PPB_VideoDecoder_Impl::GetPPP() {
   if (!ppp_videodecoder_) {
     PluginModule* plugin_module =
         HostGlobals::Get()->GetInstance(pp_instance())->module();
     if (plugin_module) {
       ppp_videodecoder_ = static_cast<const PPP_VideoDecoder_Dev*>(
@@ skipping 152 matching lines @@
   DCHECK(RenderThreadImpl::current());
   RunBitstreamBufferCallback(bitstream_buffer_id, PP_OK);
 }
 
 void PPB_VideoDecoder_Impl::NotifyFlushDone() {
   DCHECK(RenderThreadImpl::current());
   RunFlushCallback(PP_OK);
 }
 
 }  // namespace content