Remove TouchEvent interface, and rename TouchEventImpl to TouchEvent

ui/aura/root_window_unittest.cc

Index: ui/aura/root_window_unittest.cc
diff --git a/ui/aura/root_window_unittest.cc b/ui/aura/root_window_unittest.cc
index c280653463a3f7be4bee0a30824815084601b8d1..c236ea4d5ba1b5a9f3e076727ad9afb2bcd3c059 100644
--- a/ui/aura/root_window_unittest.cc
+++ b/ui/aura/root_window_unittest.cc
@@ -91,7 +91,7 @@ class EventCountFilter : public EventFilter {
     return true;
   }
   virtual ui::TouchStatus PreHandleTouchEvent(
-      Window* target, ui::TouchEventImpl* event) OVERRIDE {
+      Window* target, ui::TouchEvent* event) OVERRIDE {
     return ui::TOUCH_STATUS_UNKNOWN;
   }
   virtual ui::GestureStatus PreHandleGestureEvent(
@@ -368,7 +368,7 @@ class EventFilterRecorder : public EventFilter {
   }
   virtual ui::TouchStatus PreHandleTouchEvent(
       Window* target,
-      ui::TouchEventImpl* event) OVERRIDE {
+      ui::TouchEvent* event) OVERRIDE {
     events_.push_back(event->type());
     return ui::TOUCH_STATUS_UNKNOWN;
   }