Aura: Resize locks with --ui-enable-threaded-compositing

cc/thread_proxy.h

Index: cc/thread_proxy.h
diff --git a/cc/thread_proxy.h b/cc/thread_proxy.h
index 086855bbf53eca3876ea9abdb63ea5d27908f994..e55e1aa2081a8dbc6982a5ac961e3371d040a67d 100644
--- a/cc/thread_proxy.h
+++ b/cc/thread_proxy.h
@@ -45,6 +45,7 @@ public:
     virtual void setNeedsAnimate() OVERRIDE;
     virtual void setNeedsCommit() OVERRIDE;
     virtual void setNeedsRedraw() OVERRIDE;
+    virtual void setDeferCommits(bool) OVERRIDE;
     virtual bool commitRequested() const OVERRIDE;
     virtual void didAddAnimation() OVERRIDE { }
     virtual void start() OVERRIDE;
@@ -91,6 +92,7 @@ private:
         size_t memoryAllocationLimitBytes;
     };
     scoped_ptr<BeginFrameAndCommitState> m_pendingBeginFrameRequest;
+    scoped_ptr<BeginFrameAndCommitState> m_deferredBeginFrameRequest;

[jamesr, 2012/10/23 17:50:44]

This is unnecessary.

If commits are deferred, what you want to do is hold on to the
m_pendingBeginFrameRequest and just avoid running through the rest of the
beginFrame() logic until commits become un-deferred

[jonathan.backer, 2012/10/23 19:26:42]

Done.

 
     // Called on main thread
     void beginFrame();