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

cc/single_thread_proxy.h

Index: cc/single_thread_proxy.h
diff --git a/cc/single_thread_proxy.h b/cc/single_thread_proxy.h
index 0d005b096a5fa0f69c54f880deb05dae56ba864f..475ded01cd12591717f4f986ae4f271b55ff5375 100644
--- a/cc/single_thread_proxy.h
+++ b/cc/single_thread_proxy.h
@@ -37,6 +37,8 @@ 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;
@@ -83,6 +85,8 @@ private:
 
     base::TimeDelta m_totalCommitTime;
     size_t m_totalCommitCount;
+
+    bool m_deferCommits;
 };
 
 // For use in the single-threaded case. In debug builds, it pretends that the