mustash: Use ui::chromeos::EventRewriter in mus

ui/aura/test/aura_test_helper.h

 // 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.
 
 #ifndef UI_AURA_TEST_AURA_TEST_HELPER_H_
 #define UI_AURA_TEST_AURA_TEST_HELPER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 58 matching lines @@
              ui::ContextFactoryPrivate* context_factory_private);
 
   // Clean up objects that are created for tests. This also deletes the Env
   // object.
   void TearDown();
 
   // Flushes message loop.
   void RunAllPendingInMessageLoop();
 
   Window* root_window() { return host_->window(); }
-  ui::EventProcessor* event_processor() { return host_->event_processor(); }
+  ui::EventSink* event_sink() { return host_->event_sink(); }
   WindowTreeHost* host() { return host_.get(); }
 
   TestScreen* test_screen() { return test_screen_.get(); }
 
   // This function only returns a valid value if EnableMusWithTestWindowTree()
   // was called.
   TestWindowTree* window_tree();
 
   // Returns a WindowTreeClient only if one of the EnableMus functions is
   // called.
@@ skipping 37 matching lines @@
 
   WindowTreeClient* window_tree_client_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(AuraTestHelper);
 };
 
 }  // namespace test
 }  // namespace aura
 
 #endif  // UI_AURA_TEST_AURA_TEST_HELPER_H_