Initial CL for Data Saver (Flywheel) prompt when cellular network detected

chrome/common/extensions/extension_constants.h

 // 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.
 
 #ifndef CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 #define CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 19 matching lines @@
 
 // The extension id of the bookmark manager.
 extern const char kBookmarkManagerId[];
 
 // The extension id of the Chrome component application.
 extern const char kChromeAppId[];
 
 // The extension id of the Cloud Print component application.
 extern const char kCloudPrintAppId[];
 
+// The extension id of the Data Saver extension.
+extern const char kDataSaverExtensionId[];
+
 // The extension id of the Easy Unlock component application.
 extern const char kEasyUnlockAppId[];
 
 // The extension id of the Enterprise Web Store component application.
 extern const char kEnterpriseWebStoreAppId[];
 
 // The extension id of GMail application.
 extern const char kGmailAppId[];
 
 // The extension id of the Google Doc application.
@@ skipping 185 matching lines @@
 // The path part of the file system url used for media file systems.
 extern const char kMediaFileSystemPathPart[];
 
 // The key used for signing some pieces of data from the webstore.
 extern const uint8 kWebstoreSignaturesPublicKey[];
 extern const int kWebstoreSignaturesPublicKeySize;
 
 }  // namespace extension_misc
 
 #endif  // CHROME_COMMON_EXTENSIONS_EXTENSION_CONSTANTS_H_