Support window.opener after a process swap.

chrome/renderer/chrome_content_renderer_client.cc

 // Copyright (c) 2011 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/chrome_content_renderer_client.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/message_loop.h"
@@ skipping 443 matching lines @@
 
 bool ChromeContentRendererClient::ShouldFork(WebFrame* frame,
                                              const GURL& url,
                                              bool is_content_initiated,
                                              bool* send_referrer) {
   // If the navigation would cross an app extent boundary, we also need
   // to defer to the browser to ensure process isolation.
   // TODO(erikkay) This is happening inside of a check to is_content_initiated
   // which means that things like the back button won't trigger it.  Is that
   // OK?
-  // TODO(creis): For hosted apps, we currently only swap processes to enter
-  // the app and not exit it, since we currently lose context (e.g.,
-  // window.opener) if the window navigates back.  See crbug.com/65953.
   if (!CrossesExtensionExtents(frame, url))
     return false;
 
   // Include the referrer in this case since we're going from a hosted web
   // page. (the packaged case is handled previously by the extension
   // navigation test)
   *send_referrer = true;
 
   if (is_content_initiated) {
     const Extension* extension =
@@ skipping 75 matching lines @@
 
 bool ChromeContentRendererClient::CrossesExtensionExtents(WebFrame* frame,
                                                           const GURL& new_url) {
   const ExtensionSet* extensions = extension_dispatcher_->extensions();
   // If the URL is still empty, this is a window.open navigation. Check the
   // opener's URL.
   GURL old_url(frame->url());
   if (old_url.is_empty() && frame->opener())
     old_url = frame->opener()->url();
 
-  bool old_url_is_hosted_app = extensions->GetByURL(old_url) &&
-      !extensions->GetByURL(old_url)->web_extent().is_empty();
-  return !extensions->InSameExtent(old_url, new_url) &&
-         !old_url_is_hosted_app;
+  return !extensions->InSameExtent(old_url, new_url);
 }
 
 }  // namespace chrome