Don't use process isolation for bookmark apps.

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/logging.h"
@@ skipping 717 matching lines @@
 
 void ChromeContentRendererClient::SetExtensionDispatcher(
     ExtensionDispatcher* extension_dispatcher) {
   extension_dispatcher_.reset(extension_dispatcher);
 }
 
 bool ChromeContentRendererClient::CrossesExtensionExtents(
     WebFrame* frame,
     const GURL& new_url,
     bool is_initial_navigation) {
+  // Note: ExtensionSet does not return bookmark apps, so they will be
+  // treated like normal web pages from the process model's perspective.

[Aaron Boodman, 2011/11/17 04:10:25]

Can you just check from_bookmark() here instead of changing ExtensionSet?

[Charlie Reis, 2011/11/17 20:27:58]

Done.

   const ExtensionSet* extensions = extension_dispatcher_->extensions();
+
+  // Determine if the new_url is an extension or hosted app.
   bool is_extension_url = !!extensions->GetByURL(new_url);
   GURL old_url(frame->top()->document().url());
 
   // If old_url is still empty and this is an initial navigation, then this is
   // a window.open operation.  We should look at the opener URL.
   if (is_initial_navigation && old_url.is_empty() && frame->opener()) {
     // If we're about to open a normal web page from a same-origin opener stuck
     // in an extension process, we want to keep it in process to allow the
     // opener to script it.
     GURL opener_url = frame->opener()->document().url();
@@ skipping 55 matching lines @@
 bool ChromeContentRendererClient::IsOtherExtensionWithWebRequestInstalled() {
   return extension_dispatcher_->IsOtherExtensionWithWebRequestInstalled();
 }
 
 void ChromeContentRendererClient::RegisterPPAPIInterfaceFactories(
     webkit::ppapi::PpapiInterfaceFactoryManager* factory_manager) {
   factory_manager->RegisterFactory(ChromePPAPIInterfaceFactory);
 }
 
 }  // namespace chrome