A speculative Revert for r165872 - Remove static thread pointers from CC, attempt 2

cc/frame_rate_counter.h

Index: cc/frame_rate_counter.h
===================================================================
--- cc/frame_rate_counter.h	(revision 165906)
+++ cc/frame_rate_counter.h	(working copy)
@@ -15,7 +15,7 @@
 // intelligently compute average frames per second (and standard deviation).
 class FrameRateCounter {
 public:
-    static scoped_ptr<FrameRateCounter> create(bool hasImplThread);
+    static scoped_ptr<FrameRateCounter> create();
 
     void markBeginningOfFrame(base::TimeTicks timestamp);
     void markEndOfFrame();
@@ -34,7 +34,7 @@
     int droppedFrameCount() const { return m_droppedFrameCount; }
 
 private:
-    explicit FrameRateCounter(bool hasImplThread);
+    FrameRateCounter();
 
     base::TimeDelta frameInterval(int frameNumber) const;
     int frameIndex(int frameNumber) const;
@@ -53,8 +53,6 @@
 
     static const int kTimeStampHistorySize = 120;
 
-    bool m_hasImplThread;
-
     int m_currentFrameNumber;
     base::TimeTicks m_timeStampHistory[kTimeStampHistorySize];