Updates Zoom bubble layout and adds +/- buttons

chrome/browser/ui/views/location_bar/zoom_bubble_view.h

Index: chrome/browser/ui/views/location_bar/zoom_bubble_view.h
diff --git a/chrome/browser/ui/views/location_bar/zoom_bubble_view.h b/chrome/browser/ui/views/location_bar/zoom_bubble_view.h
index 1d2f2754faa15be9f6d1a83274df8b52af720df5..6f4627c432a97f3d97ab004d2117b5ad960f3212 100644
--- a/chrome/browser/ui/views/location_bar/zoom_bubble_view.h
+++ b/chrome/browser/ui/views/location_bar/zoom_bubble_view.h
@@ -127,12 +127,20 @@ class ZoomBubbleView : public LocationBarBubbleDelegateView,
   // 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.