Protobuf for Traffic Annotation and first use by a URLFetcher.

net/url_request/url_request_context.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 "net/url_request/url_request_context.h"
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/string_util.h"
@@ skipping 69 matching lines @@
 }
 
 std::unique_ptr<URLRequest> URLRequestContext::CreateRequest(
     const GURL& url,
     RequestPriority priority,
     URLRequest::Delegate* delegate) const {
   return base::WrapUnique(
       new URLRequest(url, priority, delegate, this, network_delegate_));
 }
 
+std::unique_ptr<URLRequest> URLRequestContext::CreateRequest(
+    const GURL& url,
+    RequestPriority priority,
+    URLRequest::Delegate* delegate,
+    NetworkTrafficAnnotationTag traffic_classification) const {
+  // traffic_annotation is just a tag that is extracted during static
+  // code analysis and can be ignored here.
+  return CreateRequest(url, priority, delegate);
+}
+
 void URLRequestContext::set_cookie_store(CookieStore* cookie_store) {
   cookie_store_ = cookie_store;
 }
 
 void URLRequestContext::AssertNoURLRequests() const {
   int num_requests = url_requests_->size();
   if (num_requests != 0) {
     // We're leaking URLRequests :( Dump the URL of the first one and record how
     // many we leaked so we have an idea of how bad it is.
     char url_buf[128];
     const URLRequest* request = *url_requests_->begin();
     base::strlcpy(url_buf, request->url().spec().c_str(), arraysize(url_buf));
     int load_flags = request->load_flags();
     base::debug::Alias(url_buf);
     base::debug::Alias(&num_requests);
     base::debug::Alias(&load_flags);
     CHECK(false) << "Leaked " << num_requests << " URLRequest(s). First URL: "
                  << request->url().spec().c_str() << ".";
   }
 }
 
 }  // namespace net