Tracing for NavigationHandle lifetime and state.

extensions/browser/extension_navigation_throttle.cc

 // Copyright 2016 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 "extensions/browser/extension_navigation_throttle.h"
 
 #include "components/guest_view/browser/guest_view_base.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/navigation_handle.h"
 #include "content/public/browser/render_frame_host.h"
@@ skipping 142 matching lines @@
     return content::NavigationThrottle::BLOCK_REQUEST;
 
   if (WebAccessibleResourcesInfo::IsResourceWebAccessible(extension,
                                                           resource_path)) {
     return content::NavigationThrottle::PROCEED;
   }
 
   return content::NavigationThrottle::BLOCK_REQUEST;
 }
 
+const char* ExtensionNavigationThrottle::GetNameForLogging() {
+  return "ExtensionNavigationThrottle";
+}
+
 }  // namespace extensions