Syntax and coverage checking added to Network Traffic Annotations.

chrome/browser/net/chrome_network_delegate.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/net/chrome_network_delegate.h"
 
 #include <stddef.h>
 #include <stdlib.h>
 
 #include <vector>
@@ skipping 197 matching lines @@
     allowed_domains_for_apps->Init(prefs::kAllowedDomainsForApps, pref_service);
     allowed_domains_for_apps->MoveToThread(
         BrowserThread::GetTaskRunnerForThread(BrowserThread::IO));
   }
 }
 
 int ChromeNetworkDelegate::OnBeforeURLRequest(
     net::URLRequest* request,
     const net::CompletionCallback& callback,
     GURL* new_url) {
+#if defined(_DEBUG) || defined(DCHECK_ALWAYS_ON)
+  network_traffic_annotation_checker_.CheckAnnotation(
+      request->traffic_annotation());
+#endif
   // TODO(mmenke): Remove ScopedTracker below once crbug.com/456327 is fixed.
   tracked_objects::ScopedTracker tracking_profile1(
       FROM_HERE_WITH_EXPLICIT_FUNCTION(
           "456327 URLRequest::ChromeNetworkDelegate::OnBeforeURLRequest"));
 
   // TODO(joaodasilva): This prevents extensions from seeing URLs that are
   // blocked. However, an extension might redirect the request to another URL,
   // which is not blocked.
 
   const ResourceRequestInfo* info = ResourceRequestInfo::ForRequest(request);
@@ skipping 326 matching lines @@
   if (!data_use_aggregator_)
     return;
 
   if (is_data_usage_off_the_record_) {
     data_use_aggregator_->ReportOffTheRecordDataUse(tx_bytes, rx_bytes);
     return;
   }
 
   data_use_aggregator_->ReportDataUse(request, tx_bytes, rx_bytes);
 }