gfx: Add FrameTime and DisplayTime classes

cc/resources/resource_update_controller.h

Index: cc/resources/resource_update_controller.h
diff --git a/cc/resources/resource_update_controller.h b/cc/resources/resource_update_controller.h
index 46800e598d77d7d601dc011368e41d52e0215911..4bd5cb8d780378a640180cf196cde8c439d721d6 100644
--- a/cc/resources/resource_update_controller.h
+++ b/cc/resources/resource_update_controller.h
@@ -11,6 +11,7 @@
 #include "base/time/time.h"
 #include "cc/base/cc_export.h"
 #include "cc/resources/resource_update_queue.h"
+#include "ui/gfx/frame_time.h"
 
 namespace base { class SingleThreadTaskRunner; }
 
@@ -43,12 +44,12 @@ class CC_EXPORT ResourceUpdateController {
   // Discard uploads to textures that were evicted on the impl thread.
   void DiscardUploadsToEvictedResources();
 
-  void PerformMoreUpdates(base::TimeTicks time_limit);
+  void PerformMoreUpdates(gfx::FrameTime time_limit);
   void Finalize();
 
 
   // Virtual for testing.
-  virtual base::TimeTicks Now() const;
+  virtual gfx::FrameTime Now() const;
   virtual base::TimeDelta UpdateMoreTexturesTime() const;
   virtual size_t UpdateMoreTexturesSize() const;
 
@@ -75,7 +76,7 @@ class CC_EXPORT ResourceUpdateController {
   scoped_ptr<ResourceUpdateQueue> queue_;
   bool contents_textures_purged_;
   ResourceProvider* resource_provider_;
-  base::TimeTicks time_limit_;
+  gfx::FrameTime time_limit_;
   size_t texture_updates_per_tick_;
   bool first_update_attempt_;
   base::SingleThreadTaskRunner* task_runner_;