Swap processes on reload if a hosted app has been installed/uninstalled.

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 540 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();
 
+  // If this is a reload, check whether it has the wrong process type.  We
+  // should send it to the browser if it's an extension URL (e.g., hosted app)
+  // in a normal process, or if it's a process for an extension that has been
+  // uninstalled.
+  if (old_url == new_url) {
+    bool is_extension_url = !!extensions->GetByURL(new_url);
+    if (is_extension_url != extension_dispatcher_->is_extension_process())
+      return true;
+  }
+
   return !extensions->InSameExtent(old_url, new_url);
 }
 
 }  // namespace chrome