Convert plugin and GPU process to brokered handle duplication.

BUG=119250
Review URL: https://chromiumcodereview.appspot.com/9958034

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@132303 0039d316-1c4b-4281-b951-d872f2087c98
void DXVAVideoDecodeAccelerator::ClearState() {
  last_input_buffer_id_ = -1;
  output_picture_buffers_.clear();
  pending_output_samples_.clear();
}

void DXVAVideoDecodeAccelerator::ClearState() {
  last_input_buffer_id_ = -1;
  output_picture_buffers_.clear();
  pending_output_samples_.clear();
}
