Mac: Some clang appeasing.

chrome/browser/cocoa/bookmark_button.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/bookmark_button.h"
 #include "base/logging.h"
 #import "base/scoped_nsobject.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #import "chrome/browser/cocoa/bookmark_button_cell.h"
 #import "chrome/browser/cocoa/browser_window_controller.h"
 #import "chrome/browser/cocoa/view_id_util.h"
 
 // The opacity of the bookmark button drag image.
 static const CGFloat kDragImageOpacity = 0.7;
 
 
 namespace bookmark_button {
 
-const NSString* kPulseBookmarkButtonNotification =
+NSString* const kPulseBookmarkButtonNotification =
     @"PulseBookmarkButtonNotification";
-const NSString* kBookmarkKey = @"BookmarkKey";
-const NSString* kBookmarkPulseFlagKey = @"BookmarkPulseFlagKey";
+NSString* const kBookmarkKey = @"BookmarkKey";
+NSString* const kBookmarkPulseFlagKey = @"BookmarkPulseFlagKey";
 
 };
 
 @interface BookmarkButton(Private)
 
 // Make a drag image for the button.
 - (NSImage*)dragImage;
 
 @end  // @interface BookmarkButton(Private)
 
@@ skipping 146 matching lines @@
   [image drawAtPoint:NSMakePoint(0, 0)
             fromRect:NSMakeRect(0, 0, NSWidth(bounds), NSHeight(bounds))
            operation:NSCompositeSourceOver
             fraction:kDragImageOpacity];
 
   [dragImage unlockFocus];
   return dragImage;
 }
 
 @end  // @implementation BookmarkButton(Private)