Support large_changestamp on GetAboutResource and GetAccountMetadata.

chrome/browser/google_apis/fake_drive_service.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 "chrome/browser/google_apis/fake_drive_service.h"
 
 #include <string>
 
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 344 matching lines @@
         FROM_HERE,
         base::Bind(callback,
                    GDATA_NO_CONNECTION,
                    base::Passed(&null)));
     return;
   }
 
   ++account_metadata_load_count_;
   scoped_ptr<AccountMetadata> account_metadata =
       AccountMetadata::CreateFrom(*account_metadata_value_);
+  // Overwrite the change stamp.
+  account_metadata->set_largest_changestamp(largest_changestamp_);
   MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(callback,
                  HTTP_SUCCESS,
                  base::Passed(&account_metadata)));
 }
 
 void FakeDriveService::GetAboutResource(
     const GetAboutResourceCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
   if (offline_) {
     scoped_ptr<AboutResource> null;
     MessageLoop::current()->PostTask(
         FROM_HERE,
         base::Bind(callback,
                    GDATA_NO_CONNECTION, base::Passed(&null)));
     return;
   }
 
   ++about_resource_load_count_;
   scoped_ptr<AboutResource> about_resource(
       AboutResource::CreateFromAccountMetadata(
           *AccountMetadata::CreateFrom(*account_metadata_value_),
           GetRootResourceId()));
+  // Overwrite the change id.
+  about_resource->set_largest_change_id(largest_changestamp_);
   MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(callback,
                  HTTP_SUCCESS, base::Passed(&about_resource)));
 }
 
 void FakeDriveService::GetAppList(const GetAppListCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
@@ skipping 712 matching lines @@
   return base::StringPrintf("resource_id_%d", resource_id_count_);
 }
 
 void FakeDriveService::AddNewChangestamp(base::DictionaryValue* entry) {
   ++largest_changestamp_;
   entry->SetString("docs$changestamp.value",
                    base::Int64ToString(largest_changestamp_));
 }
 
 }  // namespace google_apis