Make printing work better with OOPIF.

chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc

Index: chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
diff --git a/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc b/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
index 5ad6c3ea16865e83fd72c61ca3f7b879aa5bb436..98d66d9b7c2eeba098c5d77704b7cc165a387a68 100644
--- a/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
+++ b/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
@@ -25,16 +25,15 @@
 #include "extensions/renderer/guest_view/mime_handler_view/mime_handler_view_container.h"
 #endif  // defined(ENABLE_EXTENSIONS)
 
-ChromePrintWebViewHelperDelegate::~ChromePrintWebViewHelperDelegate(){
-}
+ChromePrintWebViewHelperDelegate::~ChromePrintWebViewHelperDelegate() {}
 
 bool ChromePrintWebViewHelperDelegate::CancelPrerender(
-    content::RenderView* render_view, int routing_id) {
-  if (!render_view || !prerender::PrerenderHelper::IsPrerendering(
-      render_view->GetMainRenderFrame()))
+    content::RenderFrame* render_frame,
+    int routing_id) {
+  if (!prerender::PrerenderHelper::IsPrerendering(render_frame))
     return false;
 
-  return render_view->Send(
+  return render_frame->GetRenderView()->Send(
       new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id));
 }