SetNeedsRedraw directly when updating a visible tile.

cc/trees/thread_proxy.h

Index: cc/trees/thread_proxy.h
diff --git a/cc/trees/thread_proxy.h b/cc/trees/thread_proxy.h
index adccf725d7aa7e1abf4061120964227af495fb00..a1064ab597ad06901a8fabdb5b808e8a63228bb5 100644
--- a/cc/trees/thread_proxy.h
+++ b/cc/trees/thread_proxy.h
@@ -195,7 +195,6 @@ class CC_EXPORT ThreadProxy : public Proxy,
   void SetNeedsRedrawRectOnImplThread(const gfx::Rect& dirty_rect) override;
   void SetNeedsAnimateOnImplThread() override;
   void SetNeedsManageTilesOnImplThread() override;
-  void DidInitializeVisibleTileOnImplThread() override;
   void SetNeedsCommitOnImplThread() override;
   void PostAnimationEventsToMainThreadOnImplThread(
       scoped_ptr<AnimationEventsVector> queue) override;
@@ -215,7 +214,6 @@ class CC_EXPORT ThreadProxy : public Proxy,
   DrawResult ScheduledActionDrawAndSwapForced() override;
   void ScheduledActionAnimate() override;
   void ScheduledActionCommit() override;
-  void ScheduledActionUpdateVisibleTiles() override;
   void ScheduledActionActivateSyncTree() override;
   void ScheduledActionBeginOutputSurfaceCreation() override;
   void ScheduledActionManageTiles() override;