aura: Remove event-dispatch methods from WindowTreeHostDelegate interface.

ui/views/corewm/capture_controller_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 "ui/views/corewm/capture_controller.h"
 
 #include "base/logging.h"
 #include "ui/aura/env.h"
 #include "ui/aura/root_window.h"
 #include "ui/aura/test/aura_test_base.h"
@@ skipping 85 matching lines @@
 // Makes sure that internal details that are set on mouse down (such as
 // mouse_pressed_handler()) are cleared when another root window takes capture.
 TEST_F(CaptureControllerTest, ResetMouseEventHandlerOnCapture) {
   // Create a window inside the RootWindow.
   scoped_ptr<aura::Window> w1(CreateNormalWindow(1, root_window(), NULL));
 
   // Make a synthesized mouse down event. Ensure that the RootWindow will
   // dispatch further mouse events to |w1|.
   ui::MouseEvent mouse_pressed_event(ui::ET_MOUSE_PRESSED, gfx::Point(5, 5),
                                      gfx::Point(5, 5), 0, 0);
-  dispatcher()->AsWindowTreeHostDelegate()->OnHostMouseEvent(
-      &mouse_pressed_event);
+  DispatchEventUsingWindowDispatcher(&mouse_pressed_event);
   EXPECT_EQ(w1.get(), dispatcher()->mouse_pressed_handler());
 
   // Build a window in the second RootWindow.
   scoped_ptr<aura::Window> w2(
       CreateNormalWindow(2, second_root_->window(), NULL));
 
   // The act of having the second window take capture should clear out mouse
   // pressed handler in the first RootWindow.
   w2->SetCapture();
   EXPECT_EQ(NULL, dispatcher()->mouse_pressed_handler());
@@ skipping 45 matching lines @@
   EXPECT_EQ(static_cast<aura::Window*>(NULL), GetCaptureWindow());
   EXPECT_EQ(static_cast<aura::Window*>(NULL), GetSecondCaptureWindow());
   ui::TouchEvent touch_event(
       ui::ET_TOUCH_PRESSED, gfx::Point(), 0, 0, ui::EventTimeForNow(), 1.0f,
       1.0f, 1.0f, 1.0f);
   EXPECT_EQ(static_cast<ui::GestureConsumer*>(w2.get()),
             ui::GestureRecognizer::Get()->GetTouchLockedTarget(touch_event));
 }
 
 }  // namespace views