[Patch 3 of 6] Split out content/child's SiteIsolationPolicy into two new classes.

extensions/shell/renderer/shell_content_renderer_client.cc

 // Copyright 2014 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 "extensions/shell/renderer/shell_content_renderer_client.h"
 
 #include "content/public/common/content_constants.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/public/renderer/render_frame_observer_tracker.h"
@@ skipping 112 matching lines @@
 #if !defined(DISABLE_NACL)
   // TODO(bbudge) remove this when the trusted NaCl plugin has been removed.
   // We must defer certain plugin events for NaCl instances since we switch
   // from the in-process to the out-of-process proxy after instantiating them.
   return module_name == nacl::kNaClPluginName;
 #else
   return false;
 #endif
 }
 
-bool ShellContentRendererClient::ShouldEnableSiteIsolationPolicy() const {
-  // Extension renderers don't need site isolation.
+bool ShellContentRendererClient::ShouldGatherSiteIsolationStats() const {
   return false;
 }
 
 content::BrowserPluginDelegate*
 ShellContentRendererClient::CreateBrowserPluginDelegate(
     content::RenderFrame* render_frame,
     const std::string& mime_type,
     const GURL& original_url) {
   if (mime_type == content::kBrowserPluginMimeType) {
     return new extensions::ExtensionsGuestViewContainer(render_frame);
   } else {
     return new extensions::MimeHandlerViewContainer(
         render_frame, mime_type, original_url);
   }
 }
 
 ExtensionsClient* ShellContentRendererClient::CreateExtensionsClient() {
   return new ShellExtensionsClient;
 }
 
 }  // namespace extensions