Added multi-finger gestures 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 c8a3e085fcfe360df87aff0a3cfc61a921e38b07..a8f723ee26f86356c3b18019aa067e842f3179ab 100644
--- a/ui/chromeos/touch_exploration_controller.h
+++ b/ui/chromeos/touch_exploration_controller.h
@@ -341,6 +341,10 @@ class UI_CHROMEOS_EXPORT TouchExplorationController
   // Gets enum name from integer value.
   const char* EnumStateToString(State state);
 
+  // Maps each single/multi finger swipe to the function that dispatches
+  // the corresponding key events.
+  void InitializeSwipeClosures();

[aboxhall, 2014/08/05 23:43:42]

I think the fact that they're closures is an implementation detail; I'd call
this something like InitializeSwipeGestureMaps().

[evy, 2014/08/05 23:51:18]

Done.

+
   aura::Window* root_window_;
 
   // Handles volume control. Not owned.
@@ -401,6 +405,12 @@ class UI_CHROMEOS_EXPORT TouchExplorationController
   // testing, this clock is set to the simulated clock and used.
   base::TickClock* tick_clock_;
 
+  // Maps swipes with the resulting functions that dispatch key events.
+  std::map<int, base::Closure> left_swipe_gestures_;
+  std::map<int, base::Closure> right_swipe_gestures_;
+  std::map<int, base::Closure> up_swipe_gestures_;
+  std::map<int, base::Closure> down_swipe_gestures_;
+
   DISALLOW_COPY_AND_ASSIGN(TouchExplorationController);
 };