Add GetChangelist operation for Drive V2.

chrome/browser/chromeos/gdata/operations_base.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/chromeos/gdata/operations_base.h"
 
 #include "base/json/json_reader.h"
 #include "base/metrics/histogram.h"
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
@@ skipping 32 matching lines @@
 
 // OAuth scope for the documents API.
 const char kDocsListScope[] = "https://docs.google.com/feeds/";
 const char kSpreadsheetsScope[] = "https://spreadsheets.google.com/feeds/";
 const char kUserContentScope[] = "https://docs.googleusercontent.com/";
 
 // OAuth scope for the Contacts API.
 const char kContactsScope[] = "https://www.google.com/m8/feeds/";
 
 // OAuth scope for Drive API.
+const char kDriveScope[] = "https://www.googleapis.com/auth/drive.file";
 const char kDriveAppsScope[] = "https://www.googleapis.com/auth/drive.apps";
+const char kDriveAppsReadonlyScope[] =
+    "https://www.googleapis.com/auth/drive.apps.readonly";
 
 // Parse JSON string to base::Value object.
 void ParseJsonOnBlockingPool(const std::string& data,
                              scoped_ptr<base::Value>* value) {
   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   int error_code = -1;
   std::string error_message;
   value->reset(base::JSONReader::ReadAndReturnError(data,
                                                     base::JSON_PARSE_RFC,
@@ skipping 21 matching lines @@
                              const std::string& refresh_token)
     : GDataOperationRegistry::Operation(registry),
       refresh_token_(refresh_token), callback_(callback) {
 }
 
 AuthOperation::~AuthOperation() {}
 
 void AuthOperation::Start() {
   DCHECK(!refresh_token_.empty());
   std::vector<std::string> scopes;
-  scopes.push_back(kDocsListScope);
-  scopes.push_back(kSpreadsheetsScope);
-  scopes.push_back(kUserContentScope);
-  scopes.push_back(kContactsScope);
-  // Drive App scope is required for even WAPI v3 apps access.
-  scopes.push_back(kDriveAppsScope);
+  if (gdata::util::IsDriveV2ApiEnabled()) {
+    scopes.push_back(kDriveScope);
+    scopes.push_back(kDriveAppsReadonlyScope);
+  } else {
+    scopes.push_back(kDocsListScope);
+    scopes.push_back(kSpreadsheetsScope);
+    scopes.push_back(kUserContentScope);
+    scopes.push_back(kContactsScope);
+    // Drive App scope is required for even WAPI v3 apps access.
+    scopes.push_back(kDriveAppsScope);
+  }
   oauth2_access_token_fetcher_.reset(new OAuth2AccessTokenFetcher(
       this, g_browser_process->system_request_context()));
   NotifyStart();
   oauth2_access_token_fetcher_->Start(
       GaiaUrls::GetInstance()->oauth2_chrome_client_id(),
       GaiaUrls::GetInstance()->oauth2_chrome_client_secret(),
       refresh_token_,
       scopes);
 }
 
@@ skipping 322 matching lines @@
 }
 
 void GetDataOperation::RunCallback(GDataErrorCode fetch_error_code,
                                    scoped_ptr<base::Value> value) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!callback_.is_null())
     callback_.Run(fetch_error_code, value.Pass());
 }
 
 }  // namespace gdata