Fix bubble offset issue (bubble x-coordinate pointing to wrong place) on OS X...

chrome/browser/cocoa/base_bubble_controller.mm

 // Copyright (c) 2010 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.
 
 #import "chrome/browser/cocoa/base_bubble_controller.h"
 
 #include "app/l10n_util.h"
 #include "base/logging.h"
 #include "base/mac_util.h"
 #include "base/scoped_nsobject.h"
@@ skipping 172 matching lines @@
 }
 
 // Takes the |anchor_| point and adjusts the window's origin accordingly.
 - (void)updateOriginFromAnchor {
   NSWindow* window = [self window];
   NSPoint origin = anchor_;
   NSSize offsets = NSMakeSize(info_bubble::kBubbleArrowXOffset +
                               info_bubble::kBubbleArrowWidth / 2.0, 0);
   offsets = [[parentWindow_ contentView] convertSize:offsets toView:nil];
   if ([bubble_ arrowLocation] == info_bubble::kTopRight) {
-    origin.x -= NSWidth([window frame]) + offsets.width;
+    origin.x -= NSWidth([window frame]) - offsets.width;
   } else {
     origin.x -= offsets.width;
   }
   origin.y -= NSHeight([window frame]);
   [window setFrameOrigin:origin];
 }
 
 @end  // BaseBubbleController