aura: Remove event-dispatch methods from WindowTreeHostDelegate interface.

content/browser/web_contents/aura/window_slider_unittest.cc

 // Copyright (c) 2013 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 "content/browser/web_contents/aura/window_slider.h"
 
 #include "base/bind.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/aura_test_base.h"
 #include "ui/aura/test/event_generator.h"
 #include "ui/aura/test/test_window_delegate.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 
 namespace content {
 
 void DispatchEventDuringScrollCallback(aura::WindowEventDispatcher* dispatcher,
                                        ui::Event* event,
                                        ui::EventType type,
                                        const gfx::Vector2dF& delta) {
   if (type != ui::ET_GESTURE_SCROLL_UPDATE)
     return;
-  aura::WindowTreeHostDelegate* delegate =
-      dispatcher->AsWindowTreeHostDelegate();
-  if (event->IsMouseEvent())
-    delegate->OnHostMouseEvent(static_cast<ui::MouseEvent*>(event));
-  else if (event->IsKeyEvent())
-    delegate->OnHostKeyEvent(static_cast<ui::KeyEvent*>(event));
+  ui::EventDispatchDetails details = dispatcher->OnEventFromSource(event);
+  CHECK(!details.dispatcher_destroyed);
 }
 
 void ChangeSliderOwnerDuringScrollCallback(scoped_ptr<aura::Window>* window,
                                            WindowSlider* slider,
                                            ui::EventType type,
                                            const gfx::Vector2dF& delta) {
   if (type != ui::ET_GESTURE_SCROLL_UPDATE)
     return;
   aura::Window* new_window = new aura::Window(NULL);
   new_window->Init(aura::WINDOW_LAYER_TEXTURED);
@@ skipping 364 matching lines @@
   EXPECT_FALSE(slider_delegate.created_front_layer());
   EXPECT_FALSE(slider_delegate.slide_aborted());
   EXPECT_TRUE(slider_delegate.slider_destroyed());
 
   // Destroying the slider would have destroyed |window| too. So |window| should
   // not need to be destroyed here.
   EXPECT_EQ(child_windows, root_window()->children().size());
 }
 
 }  // namespace content