Updates Zoom bubble layout and adds +/- buttons

chrome/browser/ui/views/location_bar/zoom_bubble_view.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 CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/timer/timer.h"
@@ skipping 109 matching lines @@
   base::OneShotTimer timer_;
 
   // Image button in the zoom bubble that will show the |extension_icon_| image
   // if an extension initiated the zoom change, and links to that extension at
   // "chrome://extensions".
   views::ImageButton* image_button_;
 
   // Label displaying the zoom percentage.
   views::Label* label_;
 
+  // Action buttons that can change zoom.
+  views::ImageButton* zoom_out_button_;
+  views::ImageButton* zoom_in_button_;
+  views::Button* reset_button_;
+
   // The WebContents for the page whose zoom has changed.
   content::WebContents* web_contents_;
 
   // Whether the currently displayed bubble will automatically close.
   bool auto_close_;
 
+  // True when handling a button click event.
+  bool ignore_close_bubble_;
+
   // The immersive mode controller for the BrowserView containing
   // |web_contents_|.
   // Not owned.
   ImmersiveModeController* immersive_mode_controller_;
 
   DISALLOW_COPY_AND_ASSIGN(ZoomBubbleView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_LOCATION_BAR_ZOOM_BUBBLE_VIEW_H_