Add support for content::Referrer to prerender

chrome/browser/renderer_host/chrome_resource_dispatcher_host_delegate.cc

 // Copyright (c) 2011 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/renderer_host/chrome_resource_dispatcher_host_delegate.h"
 
 #include "base/logging.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/download/download_request_limiter.h"
@@ skipping 45 matching lines @@
     : public ResourceDispatcherHostLoginDelegate {
  public:
   InstantResourceDispatcherHostLoginDelegate() {}
 
  private:
   DISALLOW_COPY_AND_ASSIGN(InstantResourceDispatcherHostLoginDelegate);
 };
 
 void AddPrerenderOnUI(
     int render_process_id, int render_view_id,
-    const GURL& url, const GURL& referrer) {
+    const GURL& url, const content::Referrer& referrer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   prerender::PrerenderManager* prerender_manager =
       prerender::FindPrerenderManagerUsingRenderProcessId(render_process_id);
   if (!prerender_manager || !prerender_manager->is_enabled())
     return;
 
   prerender_manager->AddPrerenderFromLinkRelPrerender(render_process_id,
                                                       render_view_id,
                                                       url,
                                                       referrer);
@@ skipping 25 matching lines @@
 ChromeResourceDispatcherHostDelegate::~ChromeResourceDispatcherHostDelegate() {
 }
 
 bool ChromeResourceDispatcherHostDelegate::ShouldBeginRequest(
     int child_id,
     int route_id,
     const std::string& method,
     const GURL& url,
     ResourceType::Type resource_type,
     const content::ResourceContext& resource_context,
-    const GURL& referrer) {
+    const content::Referrer& referrer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 
   // Handle a PREFETCH resource type. If prefetch is disabled, squelch the
   // request.  Otherwise, do a normal request to warm the cache.
   if (resource_type == ResourceType::PREFETCH) {
     // All PREFETCH requests should be GETs, but be defensive about it.
     if (method != "GET")
       return false;
 
     // If prefetch is disabled, kill the request.
@@ skipping 225 matching lines @@
   AutoLoginPrompter::ShowInfoBarIfPossible(request, info->child_id(),
                                            info->route_id());
 }
 
 void ChromeResourceDispatcherHostDelegate::OnRequestRedirected(
     net::URLRequest* request,
     content::ResourceResponse* response,
     ResourceMessageFilter* filter) {
   LoadTimingObserver::PopulateTimingInfo(request, response);
 }