Fix NTP so that it updates on theme change....

chrome/browser/dom_ui/new_tab_ui.cc

 // Copyright (c) 2006-2009 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 "build/build_config.h"
 
 #include "chrome/browser/dom_ui/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 1662 matching lines @@
 #ifdef CHROME_PERSONALIZATION
     if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kDisableSync)) {
       AddMessageHandler((new NewTabPageSyncHandler())->Attach(this));
     }
 #endif
 
     AddMessageHandler((new NewTabPageSetHomepageHandler())->Attach(this));
 
     // In testing mode there may not be an I/O thread.
     if (g_browser_process->io_thread()) {
-      g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
-          NewRunnableMethod(&chrome_url_data_manager,
-              &ChromeURLDataManager::AddDataSource,
-              new DOMUIThemeSource(GetProfile())));
-
+      InitializeCSSCaches();
       NewTabHTMLSource* html_source = new NewTabHTMLSource(GetProfile());
       g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
           NewRunnableMethod(&chrome_url_data_manager,
               &ChromeURLDataManager::AddDataSource,
               html_source));
     }
   }
 
   // Listen for theme installation.
   registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
                  NotificationService::AllSources());
   // Listen for bookmark bar visibility changes.
   registrar_.Add(this, NotificationType::BOOKMARK_BAR_VISIBILITY_PREF_CHANGED,
                  NotificationService::AllSources());
 }
 
 NewTabUI::~NewTabUI() {
 }
 
 void NewTabUI::Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details) {
   if (NotificationType::BROWSER_THEME_CHANGED == type) {
+    InitializeCSSCaches();
     CallJavascriptFunction(L"themeChanged");
   } else if (NotificationType::BOOKMARK_BAR_VISIBILITY_PREF_CHANGED) {
     if (GetProfile()->GetPrefs()->GetBoolean(prefs::kShowBookmarkBar))
       CallJavascriptFunction(L"bookmarkBarAttached");
     else
       CallJavascriptFunction(L"bookmarkBarDetached");
   }
 }
 
+void NewTabUI::InitializeCSSCaches() {
+  // In testing mode there may not be an I/O thread.
+  if (g_browser_process->io_thread()) {
+    g_browser_process->io_thread()->message_loop()->PostTask(FROM_HERE,
+        NewRunnableMethod(&chrome_url_data_manager,
+                          &ChromeURLDataManager::AddDataSource,
+                          new DOMUIThemeSource(GetProfile())));
+  }
+}
+
 // static
 void NewTabUI::RegisterUserPrefs(PrefService* prefs) {
   MostVisitedHandler::RegisterUserPrefs(prefs);
   ShownSectionsHandler::RegisterUserPrefs(prefs);
   if (NewTabUI::WebResourcesEnabled())
     TipsHandler::RegisterUserPrefs(prefs);
 }
 
 // static
 bool NewTabUI::UseOldNewTabPage() {
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   return command_line->HasSwitch(switches::kOldNewTabPage);
 }
 
 // static
 bool NewTabUI::WebResourcesEnabled() {
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   return !command_line->HasSwitch(switches::kDisableWebResources);
 }
 
 // static
 bool NewTabUI::FirstRunDisabled() {
   const CommandLine* command_line = CommandLine::ForCurrentProcess();
   return command_line->HasSwitch(switches::kDisableNewTabFirstRun);
 }