Refactored SettingsFrontend and forwarding of calls to the backends.

chrome/browser/extensions/settings/settings_frontend_unittest.cc

 // 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 "testing/gtest/include/gtest/gtest.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
@@ skipping 62 matching lines @@
 
   virtual void SetUp() OVERRIDE {
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     profile_.reset(new util::MockProfile(temp_dir_.path()));
     ResetFrontend();
   }
 
   virtual void TearDown() OVERRIDE {
     frontend_.reset();
     profile_.reset();
+    // Execute any pending deletion tasks.
+    message_loop_.RunAllPending();
   }
 
  protected:
   void ResetFrontend() {
     storage_factory_->Reset(new LeveldbSettingsStorageFactory());
     frontend_.reset(
         SettingsFrontend::Create(storage_factory_.get(), profile_.get()));
   }
 
   ScopedTempDir temp_dir_;
@@ skipping 218 matching lines @@
 
   frontend_->RunWithStorage(
       id, settings::SYNC, base::Bind(&UnlimitedSyncStorageTestCallback));
   frontend_->RunWithStorage(
       id, settings::LOCAL, base::Bind(&UnlimitedLocalStorageTestCallback));
 
   MessageLoop::current()->RunAllPending();
 }
 
 }  // namespace extensions