Move views::Accelerator to ui in order to use it from aura code.

views/controls/button/text_button.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 "views/controls/button/text_button.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "grit/ui_resources.h"
@@ skipping 286 matching lines @@
 }
 
 TextButtonBase::~TextButtonBase() {
 }
 
 void TextButtonBase::SetIsDefault(bool is_default) {
   if (is_default == is_default_)
     return;
   is_default_ = is_default;
   if (is_default_)
-    AddAccelerator(Accelerator(ui::VKEY_RETURN, false, false, false));
+    AddAccelerator(ui::Accelerator(ui::VKEY_RETURN, false, false, false));
   else
-    RemoveAccelerator(Accelerator(ui::VKEY_RETURN, false, false, false));
+    RemoveAccelerator(ui::Accelerator(ui::VKEY_RETURN, false, false, false));
   SchedulePaint();
 }
 
 void TextButtonBase::SetText(const string16& text) {
   text_ = text;
   SetAccessibleName(text);
   UpdateTextSize();
 }
 
 void TextButtonBase::SetFont(const gfx::Font& font) {
@@ skipping 531 matching lines @@
 #endif
 }
 
 void NativeTextButton::GetExtraParams(
     gfx::NativeTheme::ExtraParams* params) const {
   TextButton::GetExtraParams(params);
   params->button.has_border = true;
 }
 
 }  // namespace views