Delegates for the printing component

chrome/renderer/printing/print_web_view_helper.h

Index: chrome/renderer/printing/print_web_view_helper.h
diff --git a/chrome/renderer/printing/print_web_view_helper.h b/chrome/renderer/printing/print_web_view_helper.h
index f144adc45d02b52059541420eb40cbd3c5d76e8d..e443ff4b8c28472bfeaf5fec7bb86b9833284475 100644
--- a/chrome/renderer/printing/print_web_view_helper.h
+++ b/chrome/renderer/printing/print_web_view_helper.h
@@ -66,7 +66,19 @@ class PrintWebViewHelper
     : public content::RenderViewObserver,
       public content::RenderViewObserverTracker<PrintWebViewHelper> {
  public:
-  explicit PrintWebViewHelper(content::RenderView* render_view);
+
+  class Delegate {
+   public:
+    virtual ~Delegate() {}
+    virtual bool CancelPrerender(content::RenderView* render_view,
+                                 int routing_id) = 0;
+  };
+
+
+  explicit PrintWebViewHelper(content::RenderView* render_view,

[Lei Zhang, 2015/01/06 04:11:32]

explicit no longer needed

[dgn, 2015/01/06 16:35:31]

Done.

+                              const bool out_of_process_pdf_enabled,

[Vitaly Buka (NO REVIEWS), 2015/01/06 03:46:16]

"const bool" -> "bool"

[dgn, 2015/01/06 16:35:31]

Done.

+                              const bool print_preview_disabled,
+                              Delegate* delegate);
   ~PrintWebViewHelper() override;
 
   // Disable print preview and switch to system dialog printing even if full
@@ -327,6 +339,11 @@ class PrintWebViewHelper
   // True, when printing from print preview.
   bool print_for_preview_;
 
+  // Whether the content to print could be nested in an iframe.
+  const bool out_of_process_pdf_enabled_;
+
+  Delegate* delegate_;

[Lei Zhang, 2015/01/06 04:11:32]

This can be a Delegate* const

+
   // Keeps track of the state of print preview between messages.
   // TODO(vitalybuka): Create PrintPreviewContext when needed and delete after
   // use. Now it's interaction with various messages is confusing.