Move HoverButton and HoverImageButton from chrome/browser/ui/cocoa/ to ui/base/cocoa.

chrome/browser/ui/cocoa/notifications/balloon_controller.mm

 // 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 "chrome/browser/ui/cocoa/notifications/balloon_controller.h"
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #import "base/memory/scoped_nsobject.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/notifications/balloon.h"
 #include "chrome/browser/notifications/desktop_notification_service.h"
 #include "chrome/browser/notifications/desktop_notification_service_factory.h"
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_options_menu_model.h"
 #include "chrome/browser/profiles/profile.h"
-#import "chrome/browser/ui/cocoa/hover_image_button.h"
 #import "chrome/browser/ui/cocoa/menu_controller.h"
 #import "chrome/browser/ui/cocoa/notifications/balloon_view.h"
 #include "chrome/browser/ui/cocoa/notifications/balloon_view_host_mac.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
+#import "ui/base/cocoa/hover_image_button.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace {
 
 // Margin, in pixels, between the notification frame and the contents
 // of the notification.
 const int kTopMargin = 1;
 const int kBottomMargin = 2;
 const int kLeftMargin = 2;
@@ skipping 184 matching lines @@
   htmlContents_.reset(new BalloonViewHost(balloon_));
   htmlContents_->Init();
 }
 
 // NSWindowDelegate notification.
 - (void)windowWillClose:(NSNotification*)notif {
   [self autorelease];
 }
 
 @end