Do cookie checks in NetworkDelegate instead of the URLRequest::Delegate.

content/public/common/url_fetcher.h

Index: content/public/common/url_fetcher.h
diff --git a/content/public/common/url_fetcher.h b/content/public/common/url_fetcher.h
index 571a34bc85624b09e67fca77634229174a9a999f..500f8c0932c10f0a2a3570283da7e2874094fe57 100644
--- a/content/public/common/url_fetcher.h
+++ b/content/public/common/url_fetcher.h
@@ -156,6 +156,10 @@ class CONTENT_EXPORT URLFetcher {
   virtual void SetRequestContext(
       net::URLRequestContextGetter* request_context_getter) = 0;
 
+  // Mark URLRequests started by the URLFetcher to stem from the given render
+  // view.
+  virtual void AssociateWithRenderView(int process_id, int routing_id) = 0;
+
   // If |retry| is false, 5xx responses will be propagated to the observer,
   // if it is true URLFetcher will automatically re-execute the request,
   // after backoff_delay() elapses. URLFetcher has it set to true by default.
@@ -192,10 +196,6 @@ class CONTENT_EXPORT URLFetcher {
   // settings.
   virtual void Start() = 0;
 
-  // Restarts the URLFetcher with a new URLRequestContextGetter.
-  virtual void StartWithRequestContextGetter(
-      net::URLRequestContextGetter* request_context_getter) = 0;
-
   // Return the URL that we were asked to fetch.
   virtual const GURL& GetOriginalURL() const = 0;