events: Change gesture-event handler in EventHandler to not return any values.

ui/aura/test/test_window_delegate.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 "ui/aura/test/test_window_delegate.h"
 
 #include "base/stringprintf.h"
 #include "ui/aura/window.h"
 #include "ui/base/events/event.h"
 #include "ui/base/hit_test.h"
@@ skipping 83 matching lines @@
   return false;
 }
 
 void TestWindowDelegate::GetHitTestMask(gfx::Path* mask) const {
 }
 
 scoped_refptr<ui::Texture> TestWindowDelegate::CopyTexture() {
   return scoped_refptr<ui::Texture>();
 }
 
-ui::EventResult TestWindowDelegate::OnKeyEvent(ui::KeyEvent* event) {
-  return ui::ER_UNHANDLED;
-}
-
-ui::EventResult TestWindowDelegate::OnMouseEvent(ui::MouseEvent* event) {
-  return ui::ER_UNHANDLED;
-}
-
-ui::EventResult TestWindowDelegate::OnTouchEvent(ui::TouchEvent* event) {
-  return ui::ER_UNHANDLED;
-}
-
-ui::EventResult TestWindowDelegate::OnGestureEvent(
-    ui::GestureEvent* event) {
-  return ui::ER_UNHANDLED;
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // ColorTestWindowDelegate
 
 ColorTestWindowDelegate::ColorTestWindowDelegate(SkColor color)
     : color_(color),
       last_key_code_(ui::VKEY_UNKNOWN) {
 }
 ColorTestWindowDelegate::~ColorTestWindowDelegate() {
 }
 
@@ skipping 97 matching lines @@
   std::string result = StringPrintf("%d %d",
                                     key_press_count_,
                                     key_release_count_);
   key_press_count_ = 0;
   key_release_count_ = 0;
   return result;
 }
 
 }  // namespace test
 }  // namespace aura