move visual bench interactive module to timing state machine

tools/VisualBench/TimingStateMachine.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  */
 
 #ifndef TimingStateMachine_DEFINED
 #define TimingStateMachine_DEFINED
@@ skipping 21 matching lines @@
     enum ParentEvents {
         kReset_ParentEvents,
         kTiming_ParentEvents,
         kTimingFinished_ParentEvents,// This implies parent can read lastMeasurement() and must
                                      // reset
     };
 
     ParentEvents nextFrame(SkCanvas* canvas, Benchmark* benchmark);
 
     /*
+     * Before taking another sample, the owner can choose to prewarm or not
+     */
+    void nextSampleWithPrewarm();
+    void nextSample();
+
+    /*
      * The caller should call this when they are ready to move to the next benchmark.  The caller
      * must call this with the *last* benchmark so post draw hooks can be invoked
      */
     void nextBenchmark(SkCanvas*, Benchmark*);
 
 
     /*
      * When TimingStateMachine returns kTimingFinished_ParentEvents, then the owner can call
      * lastMeasurement() to get the time
      */
@@ skipping 42 matching lines @@
     void recordMeasurement();
 
     int fCurrentFrame;
     int fLoops;
     double fLastMeasurement;
     WallTimer fTimer;
     State fState;
 };
 
 #endif