Disable rendering when suspending on chrome os

ui/compositor/compositor.cc

Index: ui/compositor/compositor.cc
diff --git a/ui/compositor/compositor.cc b/ui/compositor/compositor.cc
index bea2eb7f3c98f7725e7166edf4f7b3d6e8cebbe9..74f04d57c98d9affd4a8de499b11f206806ca1ee 100644
--- a/ui/compositor/compositor.cc
+++ b/ui/compositor/compositor.cc
@@ -228,6 +228,10 @@ void Compositor::ScheduleRedrawRect(const gfx::Rect& damage_rect) {
   host_->SetNeedsCommit();
 }
 
+void Compositor::DisableSwap() {

[piman, 2015/02/11 02:48:22]

I'd prefer calling it FinishAllRendering(). It doesn't in itself disable swap.

[Chirantan Ekbote, 2015/02/18 02:47:13]

Done.

+  host_->FinishAllRendering();
+}
+
 void Compositor::DisableSwapUntilResize() {
   host_->FinishAllRendering();
   context_factory_->ResizeDisplay(this, gfx::Size());
@@ -264,6 +268,10 @@ void Compositor::SetVisible(bool visible) {
   host_->SetVisible(visible);
 }
 
+bool Compositor::IsVisible() {
+  return host_->visible();
+}
+
 scoped_refptr<CompositorVSyncManager> Compositor::vsync_manager() const {
   return vsync_manager_;
 }