Preserve Page::openedByDOM state across process swaps.

content/public/browser/web_contents.h

Index: content/public/browser/web_contents.h
diff --git a/content/public/browser/web_contents.h b/content/public/browser/web_contents.h
index 4cbbcec679ac4453ec930b28183b212f5fb6aa31..4a0ad86c233874a3c95ce4cd26bc539df26fe4c5 100644
--- a/content/public/browser/web_contents.h
+++ b/content/public/browser/web_contents.h
@@ -456,6 +456,11 @@ class WebContents : public PageNavigator,
   // Does this have an opener associated with it?
   virtual bool HasOpener() const = 0;
 
+  // True if this WebContents was created with an opener. HasOpener() becomes
+  // calls if the opener is closed while this remains true. (Relevant for
+  // whether window.close() is allowed.)

[Charlie Reis, 2014/04/05 01:41:25]

I'm having trouble reading this.  s/calls/false/?

I think both this and HasOpener could probably be rephrased to be clearer:

// Returns whether this WebContents currently has an opener WebContents.
HasOpener()...

// Returns whether this WebContents had an opener WebContents when it was
created.  This affects whether window.close() is allowed.
CreatedWithOpener() ...

[davidben, 2014/04/07 17:57:52]

Removed the additional method for now since we're splitting prerender out.

+  virtual bool CreatedWithOpener() const = 0;
+
   typedef base::Callback<void(
       int, /* id */
       int, /* HTTP status code */