Revert changes to have ExtensionService notify ThemeService directly for themes

chrome/browser/extensions/extension_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 678 matching lines @@
       const extensions::Extension* e, const char* histogram);
 
   // Open a dev tools window for the background page for the given extension,
   // starting the background page first if necesary.
   void InspectBackgroundPage(const extensions::Extension* extension);
 
 #if defined(UNIT_TEST)
   void TrackTerminatedExtensionForTest(const extensions::Extension* extension) {
     TrackTerminatedExtension(extension);
   }
-
-  void FinishInstallationForTest(const extensions::Extension* extension) {
-    FinishInstallation(extension);
-  }
 #endif
 
   extensions::AppShortcutManager* app_shortcut_manager() {
     return &app_shortcut_manager_;
   }
 
   // Specialization of syncer::SyncableService::AsWeakPtr.
   base::WeakPtr<ExtensionService> AsWeakPtr() { return base::AsWeakPtr(this); }
 
   bool browser_terminating() const { return browser_terminating_; }
@@ skipping 319 matching lines @@
 #endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_