Refactored SettingsFrontend and forwarding of calls to the backends.

chrome/browser/extensions/settings/settings_sync_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/json/json_reader.h"
 #include "base/json/json_writer.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 205 matching lines @@
     ASSERT_TRUE(temp_dir_.CreateUniqueTempDir());
     profile_.reset(new util::MockProfile(temp_dir_.path()));
     storage_factory_->Reset(new LeveldbSettingsStorageFactory());
     frontend_.reset(
         SettingsFrontend::Create(storage_factory_.get(), profile_.get()));
   }
 
   virtual void TearDown() OVERRIDE {
     frontend_.reset();
     profile_.reset();
+    // Execute any pending deletion tasks.
+    message_loop_.RunAllPending();
   }
 
  protected:
   // Adds a record of an extension or app to the extension service, then returns
   // its storage area.
   ValueStore* AddExtensionAndGetStorage(
       const std::string& id, Extension::Type type) {
     profile_->GetMockExtensionService()->AddExtensionWithId(id, type);
     return util::GetStorage(id, frontend_.get());
   }
@@ skipping 1135 matching lines @@
     DictionaryValue expected;
     expected.Set("large_value", large_value.DeepCopy());
     EXPECT_PRED_FORMAT2(SettingsEq, expected, storage1->Get());
     EXPECT_PRED_FORMAT2(SettingsEq, expected, storage2->Get());
   }
 
   GetSyncableService(model_type)->StopSyncing(model_type);
 }
 
 }  // namespace extensions