aura: Remove event-dispatch methods from WindowTreeHostDelegate interface.

ui/aura/root_window_host_win.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/root_window_host_win.h"
 
 #include <windows.h>
 
 #include <algorithm>
 
@@ skipping 215 matching lines @@
 
 void WindowTreeHostWin::OnDeviceScaleFactorChanged(
     float device_scale_factor) {
   NOTIMPLEMENTED();
 }
 
 void WindowTreeHostWin::PrepareForShutdown() {
   NOTIMPLEMENTED();
 }
 
+ui::EventProcessor* WindowTreeHostWin::GetEventProcessor() {
+  return delegate_->GetEventProcessor();
+}
+
 void WindowTreeHostWin::OnClose() {
   // TODO: this obviously shouldn't be here.
   base::MessageLoopForUI::current()->Quit();
 }
 
 LRESULT WindowTreeHostWin::OnKeyEvent(UINT message,
                                       WPARAM w_param,
                                       LPARAM l_param) {
   MSG msg = { hwnd(), message, w_param, l_param };
   ui::KeyEvent keyev(msg, message == WM_CHAR);
-  SetMsgHandled(delegate_->OnHostKeyEvent(&keyev));
+  ui::EventDispatchDetails details = SendEventToProcessor(&keyev);
+  SetMsgHandled(keyev.handled() || details.dispatcher_destroyed);
   return 0;
 }
 
 LRESULT WindowTreeHostWin::OnMouseRange(UINT message,
                                         WPARAM w_param,
                                         LPARAM l_param) {
   MSG msg = { hwnd(), message, w_param, l_param, 0,
               { CR_GET_X_LPARAM(l_param), CR_GET_Y_LPARAM(l_param) } };
   ui::MouseEvent event(msg);
   bool handled = false;
-  if (!(event.flags() & ui::EF_IS_NON_CLIENT))
-    handled = delegate_->OnHostMouseEvent(&event);
+  if (!(event.flags() & ui::EF_IS_NON_CLIENT)) {
+    ui::EventDispatchDetails details = SendEventToProcessor(&event);
+    handled = event.handled() || details.dispatcher_destroyed;
+  }
   SetMsgHandled(handled);
   return 0;
 }
 
 LRESULT WindowTreeHostWin::OnCaptureChanged(UINT message,
                                             WPARAM w_param,
                                             LPARAM l_param) {
   if (has_capture_) {
     has_capture_ = false;
     delegate_->OnHostLostWindowCapture();
@@ skipping 33 matching lines @@
 namespace test {
 
 // static
 void SetUsePopupAsRootWindowForTest(bool use) {
   use_popup_as_root_window_for_test = use;
 }
 
 }  // namespace test
 
 }  // namespace aura