Consolidate message observer API for win and aura (and touch).

chrome/browser/ui/panels/panel_browser_frame_view.cc

 // Copyright (c) 2011 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 "chrome/browser/ui/panels/panel_browser_frame_view.h"
 
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_browser_view.h"
 #include "chrome/browser/ui/panels/panel_manager.h"
@@ skipping 158 matching lines @@
     case WM_MOUSEMOVE:
     case WM_NCMOUSEMOVE:
     case WM_MOUSELEAVE:
     case WM_NCMOUSELEAVE:
       HandleGlobalMouseMoveEvent();
       break;
     default:
       break;
   }
 }
-#else
+#elif defined(TOUCH_UI) || defined(USE_AURA)
+void PanelBrowserFrameView::MouseWatcher::DidProcessEvent(
+    const base::NativeEvent& event) {
+  NOTIMPLEMENTED();
+}
+#elif defined(TOOLKIT_USES_GTK)
 void PanelBrowserFrameView::MouseWatcher::DidProcessEvent(GdkEvent* event) {
   switch (event->type) {
     case GDK_MOTION_NOTIFY:
     case GDK_LEAVE_NOTIFY:
       HandleGlobalMouseMoveEvent();
       break;
     default:
       break;
   }
 }
@@ skipping 459 matching lines @@
 
   settings_menu_model_.reset(
       new PanelSettingsMenuModel(browser_view_->panel()));
   settings_menu_adapter_.reset(
       new views::MenuModelAdapter(settings_menu_model_.get()));
   settings_menu_ = new views::MenuItemView(settings_menu_adapter_.get());
   settings_menu_adapter_->BuildMenu(settings_menu_);
   settings_menu_runner_.reset(new views::MenuRunner(settings_menu_));
   return true;
 }