Another attempt at fixing dead frames being tracked by webNavigation

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h

Index: chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h
diff --git a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h
index 9857ffe0baf9a483cb101a21b429ee34d5b66d98..785936338748e578bcb20463af7b256f0c82c02f 100644
--- a/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h
+++ b/chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h
@@ -16,6 +16,7 @@
 class DelayedResourceQueue;
 class DownloadRequestLimiter;
 class SafeBrowsingService;
+class TestNavigationListener;
 
 namespace extensions {
 class UserScriptListener;
@@ -38,6 +39,10 @@ class ChromeResourceDispatcherHostDelegate
       prerender::PrerenderTracker* prerender_tracker);
   virtual ~ChromeResourceDispatcherHostDelegate();
 
+  // Use the |test_navigation_listener| to create additional resource throttles.
+  void SetTestNavigationListener(
+      TestNavigationListener* test_navigation_listener);
+
   // ResourceDispatcherHostDelegate implementation.
   virtual bool ShouldBeginRequest(
       int child_id,
@@ -121,6 +126,7 @@ class ChromeResourceDispatcherHostDelegate
 
   scoped_refptr<DownloadRequestLimiter> download_request_limiter_;
   scoped_refptr<SafeBrowsingService> safe_browsing_;
+  scoped_refptr<TestNavigationListener> test_navigation_listener_;
   scoped_refptr<extensions::UserScriptListener> user_script_listener_;
   prerender::PrerenderTracker* prerender_tracker_;