Get rid of ui_cocoa_third_party_toolkits target from ui.gyp

chrome/browser/ui/cocoa/gradient_button_cell.mm

 // 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.
 
 #include "chrome/browser/ui/cocoa/gradient_button_cell.h"
 
 #include <cmath>
 
 #include "base/logging.h"
 #import "base/mac/scoped_nsobject.h"
 #import "chrome/browser/themes/theme_properties.h"
 #import "chrome/browser/themes/theme_service.h"
 #import "chrome/browser/ui/cocoa/nsview_additions.h"
 #import "chrome/browser/ui/cocoa/rect_path_utils.h"
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #include "grit/theme_resources.h"
-#import "third_party/GTM/AppKit/GTMNSColor+Luminance.h"
+#import "third_party/google_toolbox_for_mac/AppKit/GTMNSColor+Luminance.h"
 #import "ui/base/cocoa/nsgraphics_context_additions.h"
 #include "ui/gfx/scoped_ns_graphics_context_save_gstate_mac.h"
 
 @interface GradientButtonCell (Private)
 - (void)sharedInit;
 
 // Get drawing parameters for a given cell frame in a given view. The inner
 // frame is the one required by |-drawInteriorWithFrame:inView:|. The inner and
 // outer paths are the ones required by |-drawBorderAndFillForTheme:...|. The
 // outer path also gives the area in which to clip. Any of the |return...|
@@ skipping 753 matching lines @@
                              options:options
                                owner:self
                             userInfo:nil]);
   if (isMouseInside_ != mouseInView) {
     [self setMouseInside:mouseInView animate:NO];
     [controlView setNeedsDisplay:YES];
   }
 }
 
 @end