[rAc] [OSX] Set tooltip bubble arrow's anchor point based on the icon location.

chrome/browser/ui/cocoa/autofill/autofill_tooltip_controller.h

 // Copyright 2013 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_AUTOFILL_AUTOFILL_TOOLTIP_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_TOOLTIP_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_nsobject.h"
+#import "chrome/browser/ui/cocoa/info_bubble_view.h"
 
 @class AutofillBubbleController;
 @class AutofillTooltip;
 
 @protocol AutofillTooltipDelegate
 - (void)didBeginHover;
 - (void)didEndHover;
 @end
 
 // Controller for the Tooltip view, which handles displaying/hiding the
 // tooltip bubble on hover.
 @interface AutofillTooltipController
     : NSViewController<AutofillTooltipDelegate> {
  @private
   base::scoped_nsobject<AutofillTooltip> view_;
   AutofillBubbleController* bubbleController_;
   NSString* message_;
+  info_bubble::BubbleArrowLocation arrowLocation_;
 }
 
 // |message| to display in the tooltip.
 @property(copy, nonatomic) NSString* message;
 
-- (id)init;
+- (id)initWithArrowLocation:(info_bubble::BubbleArrowLocation)arrowLocation;
 - (void)setImage:(NSImage*)image;
 
 @end;
 
 #endif  // CHROME_BROWSER_UI_COCOA_AUTOFILL_AUTOFILL_TOOLTIP_CONTROLLER_H_