Add custom default theme support and create a managed user default theme.

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 @@
   // Check to see if we already have the image in the cache.
   NSImageMap::const_iterator nsimage_iter = nsimage_cache_.find(id);
   if (nsimage_iter != nsimage_cache_.end())
     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()) {
-    gfx::Image image = theme_pack_->GetImageNamed(id);
+  if (theme_supplier_.get()) {
+    gfx::Image image = theme_supplier_->GetImageNamed(id);
     if (!image.IsEmpty())
       nsimage = image.ToNSImage();
   }
 
   // If the theme didn't override this image then load it from the resource
   // bundle.
   if (!nsimage) {
     nsimage = rb_.GetNativeImageNamed(id).ToNSImage();
   }
 
@@ skipping 53 matching lines @@
   // Check to see if we already have the color in the cache.
   NSColorMap::const_iterator nscolor_iter = nscolor_cache_.find(id);
   if (nscolor_iter != nscolor_cache_.end()) {
     bool cached_is_default = nscolor_iter->second.second;
     if (!cached_is_default || allow_default)
       return nscolor_iter->second.first;
   }
 
   bool is_default = false;
   SkColor sk_color;
-  if (theme_pack_.get() && theme_pack_->GetColor(id, &sk_color)) {
+  if (theme_supplier_.get() && theme_supplier_->GetColor(id, &sk_color)) {
     is_default = false;
   } else {
     is_default = true;
     sk_color = ThemeProperties::GetDefaultColor(id);
   }
 
   if (is_default && !allow_default)
     return nil;
 
   NSColor* color = gfx::SkColorToCalibratedNSColor(sk_color);
@@ skipping 11 matching lines @@
   // Check to see if we already have the color in the cache.
   NSColorMap::const_iterator nscolor_iter = nscolor_cache_.find(id);
   if (nscolor_iter != nscolor_cache_.end()) {
     bool cached_is_default = nscolor_iter->second.second;
     if (!cached_is_default || allow_default)
       return nscolor_iter->second.first;
   }
 
   bool is_default = false;
   color_utils::HSL tint;
-  if (theme_pack_.get() && theme_pack_->GetTint(id, &tint)) {
+  if (theme_supplier_.get() && theme_supplier_->GetTint(id, &tint)) {
     is_default = false;
   } else {
     is_default = true;
     tint = ThemeProperties::GetDefaultTint(id);
   }
 
   if (is_default && !allow_default)
     return nil;
 
   NSColor* tint_color = nil;
@@ skipping 144 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();
 }