Remove deprecated gfx::Image::operator NSImage*().

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"
@@ skipping 33 matching lines @@
     return nsimage_iter->second;
 
   // Why don't we load the file directly into the image instead of the whole
   // gfx::Image > native conversion?
   // - For consistency with other platforms.
   // - To get the generated tinted images.
   NSImage* nsimage = nil;
   if (theme_pack_.get()) {
     const gfx::Image* image = theme_pack_->GetImageNamed(id);
     if (image)
-      nsimage = *image;
+      nsimage = image->ToNSImage();
   }
 
   // If the theme didn't override this image then load it from the resource
   // bundle.
   if (!nsimage) {
-    nsimage = rb_.GetNativeImageNamed(id);
+    nsimage = rb_.GetNativeImageNamed(id).ToNSImage();
   }
 
   // We loaded successfully.  Cache the image.
   if (nsimage) {
     nsimage_cache_[id] = [nsimage retain];
     return nsimage;
   }
 
   // We failed to retrieve the bitmap, show a debugging red square.
   LOG(WARNING) << "Unable to load NSImage with id " << id;
@@ skipping 242 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();
 }