Renderer-side changes for NoState Prefetch

chrome/renderer/prerender/prerenderer_client.cc

 // 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.
 
 #include "chrome/renderer/prerender/prerenderer_client.h"
 
 #include "base/logging.h"
 #include "chrome/renderer/prerender/prerender_extra_data.h"
+#include "chrome/renderer/prerender/prerender_helper.h"
 #include "content/public/renderer/render_view.h"
 #include "third_party/WebKit/public/web/WebView.h"
 
 namespace {
 static int s_last_prerender_id = 0;
 }
 
 namespace prerender {
 
 PrerendererClient::PrerendererClient(content::RenderView* render_view)
     : content::RenderViewObserver(render_view) {
   DCHECK(render_view);
   DVLOG(5) << "PrerendererClient::PrerendererClient()";
   render_view->GetWebView()->setPrerendererClient(this);
 }
 
 PrerendererClient::~PrerendererClient() {
 }
 
 void PrerendererClient::willAddPrerender(
     blink::WebPrerender* prerender) {
   DVLOG(3) << "PrerendererClient::willAddPrerender url = "
            << prerender->url().string().utf8();
   prerender->setExtraData(new PrerenderExtraData(++s_last_prerender_id,
                                                  routing_id(),
                                                  render_view()->GetSize()));
 }
 
+bool PrerendererClient::isPrefetchOnly() {
+  return PrerenderHelper::GetPrerenderMode(
+             render_view()->GetMainRenderFrame()) == PREFETCH_ONLY;
+}
+
 void PrerendererClient::OnDestruct() {
   delete this;
 }
 
 }  // namespace prerender