Get event targetting working for mouse events.

examples/window_manager/window_manager.cc

 // Copyright 2014 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 "base/bind.h"
 #include "base/macros.h"
 #include "examples/keyboard/keyboard.mojom.h"
 #include "examples/window_manager/debug_panel.h"
 #include "examples/window_manager/window_manager.mojom.h"
 #include "mojo/application/application_runner_chromium.h"
@@ skipping 378 matching lines @@
   // Overridden from WindowManagerDelegate:
   virtual void Embed(
       const String& url,
       InterfaceRequest<ServiceProvider> service_provider) override {
     const Id kInvalidSourceViewId = 0;
     OnLaunch(kInvalidSourceViewId, TARGET_DEFAULT, url);
   }
 
   // Overridden from ui::EventHandler:
   virtual void OnEvent(ui::Event* event) override {
-    View* view = WindowManagerApp::GetViewForViewTarget(
-        static_cast<ViewTarget*>(event->target()));
+    View* view = static_cast<ViewTarget*>(event->target())->view();
     if (event->type() == ui::ET_MOUSE_PRESSED &&
         !IsDescendantOfKeyboard(view)) {
       view->SetFocus();
     }
   }
 
   void OnLaunch(uint32 source_view_id,
                 Target requested_target,
                 const mojo::String& url) {
     Target target = debug_panel_->navigation_target();
@@ skipping 137 matching lines @@
   window_manager_->RequestNavigate(view_id_, target, request.Pass());
 }
 
 }  // namespace examples
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new mojo::examples::WindowManager);
   return runner.Run(shell_handle);
 }