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 GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
  DCHECK(surface_state_.get());
  surface_state_->visible = visible;
  surface_state_->last_used_time = base::TimeTicks::Now();
  channel_->gpu_channel_manager()->gpu_memory_manager()->ScheduleManage();
}

void GpuCommandBufferStub::OnSetSurfaceVisible(bool visible) {
  DCHECK(surface_state_.get());
  surface_state_->visible = visible;
  surface_state_->last_used_time = base::TimeTicks::Now();
  channel_->gpu_channel_manager()->gpu_memory_manager()->ScheduleManage();
}
