Changed the update protocol for component updater from v2 to v3.

chrome/browser/component_updater/component_updater_utils.h

+// Copyright (c) 2013 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_BROWSER_COMPONENT_UPDATER_COMPONENT_UPDATER_UTILS_H_
+#define CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_UPDATER_UTILS_H_
+
+#include <string>
+
+class GURL;
+
+namespace net {
+class URLFetcher;
+class URLFetcherDelegate;
+class URLRequestContextGetter;
+}
+
+namespace component_updater {
+
+// An update protocol request starts with a common preamble which includes
+// version and platform information for Chrome and the operating system,
+// followed by a request body, which is the actual payload of the request.
+// For example:
+//
+// <?xml version="1.0" encoding="UTF-8"?>
+// <request protocol="3.0" version="chrome-32.0.1.0"  prodversion="32.0.1.0"
+//        requestid="{7383396D-B4DD-46E1-9104-AAC6B918E792}"
+//        updaterchannel="canary" arch="x86" nacl_arch="x86-64">
+//   <os platform="win" version="6.1" arch="x86"/>
+//   ... REQUEST BODY ...
+// </request>
+
+// Builds a protocol request string by creating the outer envelope for
+// the request and including the request body specified as a parameter.
+std::string BuildProtocolRequest(const std::string& request_body);
+
+// Sends a protocol request to the the service endpoint specified by |url|.
+// The body of the request is provided by |protocol_request| and it is
+// expected to contain XML data. The caller owns the returned object.
+net::URLFetcher* SendProtocolRequest(
+    const GURL& url,
+    const std::string& protocol_request,
+    net::URLFetcherDelegate* url_fetcher_delegate,
+    net::URLRequestContextGetter* url_request_context_getter);
+
+}  // namespace component_updater
+
+#endif  // CHROME_BROWSER_COMPONENT_UPDATER_COMPONENT_UPDATER_UTILS_H_
+