Refactors away method implementations in ui::EventTargeter

ash/accelerators/magnifier_key_scroller_unittest.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 "ash/accelerators/magnifier_key_scroller.h"
 
 #include "ash/magnifier/magnification_controller.h"
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/test/test_window_delegate.h"
+#include "ui/events/event.h"
 #include "ui/events/test/event_generator.h"
 
 namespace ash {
 namespace {
 
 class KeyEventDelegate : public aura::test::TestWindowDelegate {
  public:
   KeyEventDelegate() {}
   ~KeyEventDelegate() override {}
 
@@ skipping 80 matching lines @@
   EXPECT_EQ(ui::ET_KEY_PRESSED, delegate.event()->type());
   delegate.reset();
 
   generator.ReleaseKey(ui::VKEY_DOWN, 0);
   EXPECT_TRUE(delegate.event());
   EXPECT_EQ(ui::ET_KEY_RELEASED, delegate.event()->type());
   delegate.reset();
 }
 
 }  // namespace ash