Add flag to specify if explicitly requested download is from web.

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #define CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_
 #pragma once
 
 #include <set>
 
@@ skipping 41 matching lines @@
       int child_id,
       int route_id,
       bool is_continuation_of_transferred_request,
       ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
   virtual void DownloadStarting(
       net::URLRequest* request,
       content::ResourceContext* resource_context,
       int child_id,
       int route_id,
       int request_id,
-      bool is_new_request,
+      bool is_content_initiated,
       ScopedVector<content::ResourceThrottle>* throttles) OVERRIDE;
   virtual bool AcceptSSLClientCertificateRequest(
         net::URLRequest* request,
         net::SSLCertRequestInfo* cert_request_info) OVERRIDE;
   virtual bool AcceptAuthRequest(net::URLRequest* request,
                                  net::AuthChallengeInfo* auth_info) OVERRIDE;
   virtual content::ResourceDispatcherHostLoginDelegate* CreateLoginDelegate(
       net::AuthChallengeInfo* auth_info, net::URLRequest* request) OVERRIDE;
   virtual void HandleExternalProtocol(const GURL& url,
                                       int child_id,
@@ skipping 53 matching lines @@
   // This consists of a list of valid IDs, and the actual transmitted header.
   // Note that since this cache is both initialized and accessed from the IO
   // thread, we do not need to synchronize its uses.
   std::set<chrome_variations::ID> variation_ids_set_;
   std::string variation_ids_header_;
 
   DISALLOW_COPY_AND_ASSIGN(ChromeResourceDispatcherHostDelegate);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_CHROME_RESOURCE_DISPATCHER_HOST_DELEGATE_H_