Added touch event permutations test to touch_exploration_controller.

ui/chromeos/touch_exploration_controller.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_CHROMEOS_TOUCH_EXPLORATION_CONTROLLER_H_
 #define UI_CHROMEOS_TOUCH_EXPLORATION_CONTROLLER_H_
 
 #include "base/timer/timer.h"
 #include "base/values.h"
 #include "ui/chromeos/ui_chromeos_export.h"
@@ skipping 72 matching lines @@
 //
 // The caller is expected to retain ownership of instances of this class and
 // destroy them before |root_window| is destroyed.
 class UI_CHROMEOS_EXPORT TouchExplorationController
     : public ui::EventRewriter {
  public:
   explicit TouchExplorationController(aura::Window* root_window);
   virtual ~TouchExplorationController();
 
   void CallTapTimerNowForTesting();
+  void CallTapTimerNowIfRunningForTesting();
+  void SwitchVLOG(bool turn_on);

[dmazzoni, 2014/07/02 23:05:57]

I'd call this SwitchVLOGForTesting as-is.

I think I'd prefer that you name it something that makes it more clear why you
might want to do this, something like:

void SuppressVLOGsForTesting(bool suppress);

(This reverses the way you have the logic now - i.e. "true" would mean to not
log.)

Add a very short comment saying this is for tests that would generate too many
logs otherwise.

[evy, 2014/07/02 23:16:03]

Done.

   void SetEventHandlerForTesting(ui::EventHandler* event_handler_for_testing);
   bool IsInNoFingersDownStateForTesting() const;
 
  private:
   // Overridden from ui::EventRewriter
   virtual ui::EventRewriteStatus RewriteEvent(
       const ui::Event& event,
       scoped_ptr<ui::Event>* rewritten_event) OVERRIDE;
   virtual ui::EventRewriteStatus NextDispatchEvent(
       const ui::Event& last_event, scoped_ptr<ui::Event>* new_event) OVERRIDE;
@@ skipping 140 matching lines @@
   // A default gesture detector config, so we can share the same
   // timeout and pixel slop constants.
   ui::GestureDetector::Config gesture_detector_config_;
 
   // The previous state entered.
   State prev_state_;
 
   // 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);
 };
 
 }  // namespace ui
 
 #endif  // UI_CHROMEOS_TOUCH_EXPLORATION_CONTROLLER_H_