Provide access to the WindowEventDispatcher as a ui::EventProcessor.

ui/aura/test/aura_test_helper.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/test/aura_test_helper.h"
 
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/client/default_activation_client.h"
@@ skipping 63 matching lines @@
   activation_client_.reset(
       new client::DefaultActivationClient(root_window()));
   capture_client_.reset(new client::DefaultCaptureClient(root_window()));
   test_input_method_.reset(new ui::DummyInputMethod);
   root_window()->SetProperty(
       client::kRootWindowInputMethodKey,
       test_input_method_.get());
 
   root_window()->Show();
   // Ensure width != height so tests won't confuse them.
-  dispatcher()->host()->SetBounds(gfx::Rect(800, 600));
+  host()->SetBounds(gfx::Rect(800, 600));
 }
 
 void AuraTestHelper::TearDown() {
   teardown_called_ = true;
   test_input_method_.reset();
   stacking_client_.reset();
   activation_client_.reset();
   capture_client_.reset();
   focus_client_.reset();
   client::SetFocusClient(root_window(), NULL);
@@ skipping 13 matching lines @@
 
 void AuraTestHelper::RunAllPendingInMessageLoop() {
   // TODO(jbates) crbug.com/134753 Find quitters of this RunLoop and have them
   //              use run_loop.QuitClosure().
   base::RunLoop run_loop;
   run_loop.RunUntilIdle();
 }
 
 }  // namespace test
 }  // namespace aura