Added touch event permutations test to touch_exploration_controller.

ui/chromeos/touch_exploration_controller.h

Index: ui/chromeos/touch_exploration_controller.h
diff --git a/ui/chromeos/touch_exploration_controller.h b/ui/chromeos/touch_exploration_controller.h
index 6ade40a0c1ab856f420b337f69d080c9090a91a3..e809bcd7b9378f0232a2137e4bd0f29e4f605f5a 100644
--- a/ui/chromeos/touch_exploration_controller.h
+++ b/ui/chromeos/touch_exploration_controller.h
@@ -104,9 +104,13 @@ class UI_CHROMEOS_EXPORT TouchExplorationController
   virtual ~TouchExplorationController();
 
   void CallTapTimerNowForTesting();
+  void CallTapTimerNowIfRunningForTesting();
   void SetEventHandlerForTesting(ui::EventHandler* event_handler_for_testing);
   bool IsInNoFingersDownStateForTesting() const;
   bool IsInGestureInProgressStateForTesting() const;
+  // VLOGs should be suppressed in tests that generate a lot of logs,
+  // for example permutations of nine touch events.
+  void SuppressVLOGsForTesting(bool suppress);
 
  private:
   // Overridden from ui::EventRewriter
@@ -296,6 +300,9 @@ class UI_CHROMEOS_EXPORT TouchExplorationController
   // A copy of the previous event passed.
   scoped_ptr<ui::TouchEvent> prev_event_;
 
+  // This toggles whether VLOGS are turned on or not.
+  bool VLOG_on_;
+
   DISALLOW_COPY_AND_ASSIGN(TouchExplorationController);
 };