Don't use process isolation for bookmark apps.

chrome/browser/renderer_host/chrome_render_view_host_observer.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/browser/renderer_host/chrome_render_view_host_observer.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/dom_operation_notification_details.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/net/predictor.h"
@@ skipping 108 matching lines @@
   if (type == Extension::TYPE_EXTENSION ||
       type == Extension::TYPE_USER_SCRIPT ||
       type == Extension::TYPE_PACKAGED_APP ||
       (type == Extension::TYPE_HOSTED_APP &&
        extension->location() == Extension::COMPONENT)) {
     Send(new ExtensionMsg_ActivateExtension(extension->id()));
   }
 }
 
 const Extension* ChromeRenderViewHostObserver::GetExtension() {
-  // Note that due to ChromeContentBrowserClient::GetEffectiveURL(), even hosted
-  // apps will have a chrome-extension:// URL for their site, so we can ignore
-  // that wrinkle here.
+  // Note that due to ChromeContentBrowserClient::GetEffectiveURL(), hosted apps
+  // (excluding bookmark apps) will have a chrome-extension:// URL for their
+  // site, so we can ignore that wrinkle here.
   SiteInstance* site_instance = render_view_host()->site_instance();
   const GURL& site = site_instance->site();
 
   if (!site.SchemeIs(chrome::kExtensionScheme))
     return NULL;
 
   ExtensionService* service = profile_->GetExtensionService();
   if (!service)
     return NULL;
 
@@ skipping 25 matching lines @@
       content::Source<RenderViewHost>(render_view_host()),
       content::Details<DomOperationNotificationDetails>(&details));
 }
 
 void ChromeRenderViewHostObserver::OnFocusedEditableNodeTouched() {
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_FOCUSED_EDITABLE_NODE_TOUCHED,
       content::Source<RenderViewHost>(render_view_host()),
       content::NotificationService::NoDetails());
 }