switch to using native JSON object

chrome/renderer/render_thread.cc

 // Copyright (c) 2006-2008 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/render_thread.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 327 matching lines @@
 
   WebKit::registerExtension(ExtensionProcessBindings::Get(),
       WebKit::WebString::fromUTF8(chrome::kExtensionScheme));
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
   // TODO(aa): Add a way to restrict extensions to the content script context
   // only so that we don't have to gate these on --enable-extensions.
   if (command_line.HasSwitch(switches::kEnableExtensions)) {
     WebKit::registerExtension(BaseJsV8Extension::Get());
-    WebKit::registerExtension(JsonJsV8Extension::Get());
     WebKit::registerExtension(JsonSchemaJsV8Extension::Get());
     WebKit::registerExtension(EventBindings::Get());
     WebKit::registerExtension(RendererExtensionBindings::Get());
   }
 
   if (command_line.HasSwitch(switches::kPlaybackMode) ||
       command_line.HasSwitch(switches::kRecordMode) ||
       command_line.HasSwitch(switches::kNoJsRandomness)) {
     WebKit::registerExtension(extensions_v8::PlaybackExtension::Get());
   }
@@ skipping 22 matching lines @@
 
 void RenderThread::OnPurgePluginListCache() {
   // The call below will cause a GetPlugins call with refresh=true, but at this
   // point we already know that the browser has refreshed its list, so disable
   // refresh temporarily to prevent each renderer process causing the list to be
   // regenerated.
   plugin_refresh_allowed_ = false;
   WebKit::resetPluginCache();
   plugin_refresh_allowed_ = true;
 }