[Mac] Restore menu position for buttons after Material Design changes.

chrome/browser/ui/cocoa/toolbar/toolbar_controller.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_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <memory>
@@ skipping 78 matching lines @@
   ui::ScopedCrTrackingArea trackingArea_;
 
   // We retain/release the hover button since interaction with the
   // button may make it go away (e.g. delete menu option over a
   // bookmark button).  Thus this variable is not weak.  The
   // hoveredButton_ is required to have an NSCell that responds to
   // setMouseInside:animate:.
   NSButton* hoveredButton_;
 }
 
+// Return the inset needed to center a toolbar button's icon within the 28x28
+// design area defined by Material Design.
++ (CGFloat)materialDesignButtonInset;
+
 // Initialize the toolbar and register for command updates. The profile is
 // needed for initializing the location bar. The browser is needed for
 // the toolbar model and back/forward menus. The resizeDelegate is used
 // to smoothly animate height changes for the toolbar.
 - (id)initWithCommands:(CommandUpdater*)commands
                profile:(Profile*)profile
                browser:(Browser*)browser
         resizeDelegate:(id<ViewResizer>)resizeDelegate;
 
 // Get the C++ bridge object representing the location bar for this tab.
@@ skipping 83 matching lines @@
 @interface ToolbarController(PrivateTestMethods)
 // Returns an array of views in the order of the outlets above.
 - (NSArray*)toolbarViews;
 - (void)showOptionalHomeButton;
 - (void)installAppMenu;
 // Return a hover button for the current event.
 - (NSButton*)hoverButtonForEvent:(NSEvent*)theEvent;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_TOOLBAR_TOOLBAR_CONTROLLER_H_