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 d20b8aafc887f834fdbe540318ef29f1f39eda0d..d98116faa10c95502ac605deabc043b9a2eb7439 100644
--- a/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
+++ b/chrome/renderer/printing/chrome_print_web_view_helper_delegate.cc
@@ -25,17 +25,16 @@
 #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) {
+  if (!prerender::PrerenderHelper::IsPrerendering(render_frame))
     return false;
 
-  return render_view->Send(
-      new ChromeViewHostMsg_CancelPrerenderForPrinting(routing_id));
+  auto* render_view = render_frame->GetRenderView();
+  return render_view->Send(new ChromeViewHostMsg_CancelPrerenderForPrinting(
+      render_view->GetRoutingID()));
 }
 
 // Return the PDF object element if |frame| is the out of process PDF extension.