Get rid of ui_cocoa_third_party_toolkits target from ui.gyp

chrome/browser/themes/theme_service_mac.mm

 // Copyright (c) 2011 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.
 
 #include "chrome/browser/themes/theme_service.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #include "chrome/browser/themes/browser_theme_pack.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "skia/ext/skia_utils_mac.h"
-#import "third_party/GTM/AppKit/GTMNSColor+Luminance.h"
+#import "third_party/google_toolbox_for_mac/src/AppKit/GTMNSColor+Luminance.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/color_utils.h"
 #include "ui/gfx/image/image.h"
 #include "skia/ext/skia_utils_mac.h"
 
 NSString* const kBrowserThemeDidChangeNotification =
     @"BrowserThemeDidChangeNotification";
 
 typedef ThemeProperties Properties;
 
@@ skipping 256 matching lines @@
   }
   nscolor_cache_.clear();
 
   // Free gradients.
   for (NSGradientMap::iterator i = nsgradient_cache_.begin();
        i != nsgradient_cache_.end(); i++) {
     [i->second release];
   }
   nsgradient_cache_.clear();
 }