[NOCOMMIT] Make DriveService{Wrapper|Messenger} class

chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc

Index: chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc
diff --git a/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc b/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc
index 64ac9dc992bdec992972a11ee4674c7bec79c5ce..6ba0283a75adbdcaaef704a91cc6c228a6aed440 100644
--- a/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc
+++ b/chrome/browser/sync_file_system/drive_backend/local_to_remote_syncer_unittest.cc
@@ -56,17 +56,18 @@ class LocalToRemoteSyncerTest : public testing::Test {
     ASSERT_TRUE(database_dir_.CreateUniqueTempDir());
     in_memory_env_.reset(leveldb::NewMemEnv(leveldb::Env::Default()));
 
-    fake_drive_service_.reset(new FakeDriveServiceWrapper);
+    scoped_ptr<FakeDriveServiceWrapper>
+        fake_drive_service(new FakeDriveServiceWrapper);
 
-    drive_uploader_.reset(new FakeDriveUploader(fake_drive_service_.get()));
+    drive_uploader_.reset(new FakeDriveUploader(fake_drive_service.get()));
     fake_drive_helper_.reset(new FakeDriveServiceHelper(
-        fake_drive_service_.get(),
+        fake_drive_service.get(),
         drive_uploader_.get(),
         kSyncRootFolderTitle));
     fake_remote_change_processor_.reset(new FakeRemoteChangeProcessor);
 
     context_.reset(new SyncEngineContext(
-        fake_drive_service_.get(),
+        fake_drive_service.PassAs<drive::DriveServiceInterface>(),
         drive_uploader_.get(),
         base::MessageLoopProxy::current(),
         base::MessageLoopProxy::current()));
@@ -82,7 +83,6 @@ class LocalToRemoteSyncerTest : public testing::Test {
 
   virtual void TearDown() OVERRIDE {
     sync_task_manager_.reset();
-    fake_drive_service_.reset();
     drive_uploader_.reset();
 
     RevokeSyncableFileSystem();
@@ -242,7 +242,6 @@ class LocalToRemoteSyncerTest : public testing::Test {
   base::ScopedTempDir database_dir_;
   scoped_ptr<leveldb::Env> in_memory_env_;
 
-  scoped_ptr<FakeDriveServiceWrapper> fake_drive_service_;
   scoped_ptr<drive::DriveUploaderInterface> drive_uploader_;
   scoped_ptr<SyncEngineContext> context_;
   scoped_ptr<FakeDriveServiceHelper> fake_drive_helper_;