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..35bba29c1e5f3552d8a63d76bafda835cd805a29 100644
--- a/cc/thread_proxy.h
+++ b/cc/thread_proxy.h
@@ -45,6 +45,8 @@ public:
     virtual void setNeedsAnimate() OVERRIDE;
     virtual void setNeedsCommit() OVERRIDE;
     virtual void setNeedsRedraw() OVERRIDE;
+    virtual void setDeferCommits(bool) OVERRIDE;
+    virtual bool deferCommits() const OVERRIDE;
     virtual bool commitRequested() const OVERRIDE;
     virtual void didAddAnimation() OVERRIDE { }
     virtual void start() OVERRIDE;
@@ -173,6 +175,8 @@ private:
 
     base::TimeDelta m_totalCommitTime;
     size_t m_totalCommitCount;
+
+    bool m_deferCommits;
 };
 
 }