Use Drive v2 API: enable behind --enable-drive-api flag

chrome/browser/chromeos/gdata/gdata_documents_service_browsertest.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 "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/json/json_reader.h"
 #include "chrome/browser/chromeos/gdata/gdata_documents_service.h"
@@ skipping 11 matching lines @@
   GDataTest()
       : InProcessBrowserTest(),
         gdata_test_server_(net::TestServer::TYPE_GDATA,
                            net::TestServer::kLocalhost,
                            FilePath(FILE_PATH_LITERAL("chrome/test/data"))) {
   }
 
   virtual void SetUpOnMainThread() OVERRIDE {
     ASSERT_TRUE(gdata_test_server_.Start());
     service_.reset(new gdata::DocumentsService);
-    service_->Initialize(browser()->profile());
+    service_->Initialize(browser()->profile(), false);
     service_->auth_service_for_testing()->set_oauth2_auth_token_for_testing(
         net::TestServer::kGDataAuthToken);
   }
 
   virtual void CleanUpOnMainThread() {
     service_.reset();
   }
 
  protected:
   FilePath GetTestCachedFilePath(const FilePath& file_name) {
@@ skipping 96 matching lines @@
       gdata::DocumentsServiceInterface::GetDocumentsOptions(
           0,  // start_changestamp
           std::string(),  // search string
           std::string()),  // directory resource ID
       base::Bind(&TestGetDocumentsCallback, &result, &result_data));
   ui_test_utils::RunMessageLoop();
 
   EXPECT_EQ(gdata::GDATA_PARSE_ERROR, result);
   EXPECT_FALSE(result_data);
 }