cc: Make DisplayScheduler aware of resize and add tracing.

cc/surfaces/surface_factory.cc

Index: cc/surfaces/surface_factory.cc
diff --git a/cc/surfaces/surface_factory.cc b/cc/surfaces/surface_factory.cc
index 9bb50ace4c29acd2c46ea28b6ba0e898558f09d6..1681c41de97d53c504656a39c1b25ebeb4a1cea1 100644
--- a/cc/surfaces/surface_factory.cc
+++ b/cc/surfaces/surface_factory.cc
@@ -4,6 +4,7 @@
 
 #include "cc/surfaces/surface_factory.h"
 
+#include "base/trace_event/trace_event.h"
 #include "cc/output/compositor_frame.h"
 #include "cc/output/copy_output_request.h"
 #include "cc/surfaces/surface.h"
@@ -50,12 +51,15 @@ void SurfaceFactory::Destroy(SurfaceId surface_id) {
 void SurfaceFactory::SubmitFrame(SurfaceId surface_id,
                                  scoped_ptr<CompositorFrame> frame,
                                  const DrawCallback& callback) {
+  TRACE_EVENT0("cc", "SurfaceFactory::SubmitFrame");
   OwningSurfaceMap::iterator it = surface_map_.find(surface_id);
   DCHECK(it != surface_map_.end());
   DCHECK(it->second->factory().get() == this);
   it->second->QueueFrame(frame.Pass(), callback);
-  if (!manager_->SurfaceModified(surface_id))
+  if (!manager_->SurfaceModified(surface_id)) {
+    TRACE_EVENT_INSTANT0("cc", "Damage not visible.", TRACE_EVENT_SCOPE_THREAD);
     it->second->RunDrawCallbacks(SurfaceDrawStatus::DRAW_SKIPPED);
+  }
 }
 
 void SurfaceFactory::RequestCopyOfSurface(