[NOCOMMIT] Make DriveService{Wrapper|Messenger} class

chrome/browser/sync_file_system/drive_backend/register_app_task_unittest.cc

 // Copyright 2013 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/sync_file_system/drive_backend/register_app_task.h"
 
 #include <vector>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/format_macros.h"
@@ skipping 28 matching lines @@
  public:
   RegisterAppTaskTest()
       : next_file_id_(1000),
         next_tracker_id_(10000) {}
   virtual ~RegisterAppTaskTest() {}
 
   virtual void SetUp() OVERRIDE {
     ASSERT_TRUE(database_dir_.CreateUniqueTempDir());
     in_memory_env_.reset(leveldb::NewMemEnv(leveldb::Env::Default()));
 
-    fake_drive_service_.reset(new drive::FakeDriveService);
+    scoped_ptr<drive::FakeDriveService>
+        fake_drive_service(new drive::FakeDriveService);
 
-    drive_uploader_.reset(new drive::DriveUploader(
-        fake_drive_service_.get(), base::MessageLoopProxy::current()));
+    drive_uploader_.reset(
+        new drive::DriveUploader(fake_drive_service.get(),
+                                 base::MessageLoopProxy::current()));
 
-    fake_drive_service_helper_.reset(new FakeDriveServiceHelper(
-        fake_drive_service_.get(), drive_uploader_.get(),
-        kSyncRootFolderTitle));
+    fake_drive_service_helper_.reset(
+        new FakeDriveServiceHelper(fake_drive_service.get(),
+                                   drive_uploader_.get(),
+                                   kSyncRootFolderTitle));
 
-    context_.reset(
-        new SyncEngineContext(fake_drive_service_.get(),
-                              drive_uploader_.get(),
-                              base::MessageLoopProxy::current(),
-                              base::MessageLoopProxy::current()));
+    context_.reset(new SyncEngineContext(
+        fake_drive_service.PassAs<drive::DriveServiceInterface>(),
+        drive_uploader_.get(),
+        base::MessageLoopProxy::current(),
+        base::MessageLoopProxy::current()));
 
     ASSERT_EQ(google_apis::HTTP_CREATED,
               fake_drive_service_helper_->AddOrphanedFolder(
                   kSyncRootFolderTitle, &sync_root_folder_id_));
   }
 
   virtual void TearDown() OVERRIDE {
     context_.reset();
-    fake_drive_service_.reset();
     drive_uploader_.reset();
     base::RunLoop().RunUntilIdle();
   }
 
  protected:
   scoped_ptr<leveldb::DB> OpenLevelDB() {
     leveldb::DB* db = NULL;
     leveldb::Options options;
     options.create_if_missing = true;
     options.env = in_memory_env_.get();
@@ skipping 156 matching lines @@
 
   std::string sync_root_folder_id_;
 
   int64 next_file_id_;
   int64 next_tracker_id_;
 
   content::TestBrowserThreadBundle browser_threads_;
   base::ScopedTempDir database_dir_;
 
   scoped_ptr<SyncEngineContext> context_;
-  scoped_ptr<drive::FakeDriveService> fake_drive_service_;
   scoped_ptr<drive::DriveUploaderInterface> drive_uploader_;
   scoped_ptr<FakeDriveServiceHelper> fake_drive_service_helper_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterAppTaskTest);
 };
 
 TEST_F(RegisterAppTaskTest, AlreadyRegistered) {
   scoped_ptr<leveldb::DB> db(OpenLevelDB());
   ASSERT_TRUE(db);
   SetUpInitialData(db.get());
@@ skipping 50 matching lines @@
 
   CreateMetadataDatabase(db.Pass());
   RunRegisterAppTask(kAppID);
 
   EXPECT_EQ(1u, CountRegisteredAppRoot());
   EXPECT_TRUE(IsAppRegistered(kAppID));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system