Add request header on gdata operation for testing ETag match.

chrome/browser/google_apis/gdata_wapi_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/gdata_wapi_service.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 167 matching lines @@
     const gdata::GetDataCallback& callback) {
   // For WAPI, AccountMetadata includes Drive application information.
   GetAccountMetadata(callback);
 }
 
 void GDataWapiService::DownloadDocument(
     const FilePath& virtual_path,
     const FilePath& local_cache_path,
     const GURL& document_url,
     DocumentExportFormat format,
+    const std::string& etag,
     const gdata::DownloadActionCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   DownloadFile(
       virtual_path,
       local_cache_path,
       chrome_common_net::AppendQueryParameter(document_url,
                                               "exportFormat",
                                               GetExportFormatParam(format)),
+      etag,
       callback,
       gdata::GetContentCallback());
 }
 
 void GDataWapiService::DownloadFile(
     const FilePath& virtual_path,
     const FilePath& local_cache_path,
     const GURL& document_url,
+    const std::string& etag,
     const gdata::DownloadActionCallback& download_action_callback,
     const gdata::GetContentCallback& get_content_callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   runner_->StartOperationWithRetry(
       new gdata::DownloadFileOperation(operation_registry(),
                                        download_action_callback,
                                        get_content_callback, document_url,
-                                       virtual_path, local_cache_path));
+                                       virtual_path, local_cache_path,
+                                       etag));
 }
 
 void GDataWapiService::DeleteDocument(
     const GURL& document_url,
+    const std::string& etag,
     const gdata::EntryActionCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   runner_->StartOperationWithRetry(
       new gdata::DeleteDocumentOperation(operation_registry(), callback,
-                                         document_url));
+                                         document_url, etag));
 }
 
 void GDataWapiService::CreateDirectory(
     const GURL& parent_content_url,
     const FilePath::StringType& directory_name,
     const gdata::GetDataCallback& callback) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   runner_->StartOperationWithRetry(
       new gdata::CreateDirectoryOperation(operation_registry(), callback,
@@ skipping 116 matching lines @@
       DriveServiceObserver, observers_, OnProgressUpdate(list));
 }
 
 void GDataWapiService::OnAuthenticationFailed(gdata::GDataErrorCode error) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   FOR_EACH_OBSERVER(
       DriveServiceObserver, observers_, OnAuthenticationFailed(error));
 }
 
 }  // namespace drive