Support double-tap to click in touch accessibility controller.

ui/aura/test/event_generator.h

Index: ui/aura/test/event_generator.h
diff --git a/ui/aura/test/event_generator.h b/ui/aura/test/event_generator.h
index 29832b14f11aabd48f7e7cb508831996c4ddc317..15939489771576d4f546787ef7347364f042bebf 100644
--- a/ui/aura/test/event_generator.h
+++ b/ui/aura/test/event_generator.h
@@ -11,14 +11,11 @@
 #include "base/basictypes.h"
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
+#include "base/time/time.h"
 #include "ui/events/event_constants.h"
 #include "ui/events/keycodes/keyboard_codes.h"
 #include "ui/gfx/point.h"
 
-namespace base {
-class TimeDelta;
-}
-
 namespace ui {
 class Event;
 class EventProcessor;
@@ -317,6 +314,12 @@ class EventGenerator {
     current_host_ = host;
   }
 
+  // If this is set, the given value will be used as the time for all
+  // events, rather than the current time.
+  void set_simulated_time(base::TimeDelta simulated_time) {
+    simulated_time_ = simulated_time;
+  }
+
  private:
   // Dispatch a key event to the WindowEventDispatcher.
   void DispatchKeyEvent(bool is_press, ui::KeyboardCode key_code, int flags);
@@ -338,6 +341,8 @@ class EventGenerator {
   void DispatchNextPendingEvent();
   void DoDispatchEvent(ui::Event* event, bool async);
 
+  base::TimeDelta Now();
+
   scoped_ptr<EventGeneratorDelegate> delegate_;
   gfx::Point current_location_;
   WindowTreeHost* current_host_;
@@ -346,6 +351,7 @@ class EventGenerator {
   std::list<ui::Event*> pending_events_;
   // Set to true to cause events to be posted asynchronously.
   bool async_;
+  base::TimeDelta simulated_time_;
 
   DISALLOW_COPY_AND_ASSIGN(EventGenerator);
 };