Remove GestureEvent interface, and rename GestureEventImpl to GestureEvent.

ui/aura/gestures/gesture_recognizer_unittest.cc

 // Copyright (c) 2012 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.
 
 #include "base/memory/scoped_vector.h"
 #include "base/string_number_conversions.h"
 #include "base/timer.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/aura_test_base.h"
@@ skipping 97 matching lines @@
 
   float scroll_x() const { return scroll_x_; }
   float scroll_y() const { return scroll_y_; }
   int touch_id() const { return touch_id_; }
   float velocity_x() const { return velocity_x_; }
   float velocity_y() const { return velocity_y_; }
   const gfx::Rect& bounding_box() const { return bounding_box_; }
   int tap_count() const { return tap_count_; }
 
   virtual ui::GestureStatus OnGestureEvent(
-      ui::GestureEventImpl* gesture) OVERRIDE {
+      ui::GestureEvent* gesture) OVERRIDE {
     bounding_box_ = gesture->details().bounding_box();
     switch (gesture->type()) {
       case ui::ET_GESTURE_TAP:
         tap_location_ = gesture->location();
         tap_count_ = gesture->details().tap_count();
         tap_ = true;
         break;
       case ui::ET_GESTURE_TAP_DOWN:
         tap_down_ = true;
         break;
@@ skipping 2441 matching lines @@
   root_window()->AsRootWindowHostDelegate()->OnHostTouchEvent(&move2);
   EXPECT_FALSE(delegate->tap());
   EXPECT_FALSE(delegate->scroll_update());
   EXPECT_FALSE(delegate->pinch_update());
 
   delegate->Reset();
 }
 
 }  // namespace test
 }  // namespace aura