Bind plugin placeholder directly to v8 instead of over CppBoundClass

chrome/renderer/plugins/chrome_plugin_placeholder.cc

Index: chrome/renderer/plugins/chrome_plugin_placeholder.cc
diff --git a/chrome/renderer/plugins/chrome_plugin_placeholder.cc b/chrome/renderer/plugins/chrome_plugin_placeholder.cc
index 7b7506dcdbaf2404a30b8ca5ff4d629b87d39e91..3fd5b2efc176d29346378442f1d715c1625ad237 100644
--- a/chrome/renderer/plugins/chrome_plugin_placeholder.cc
+++ b/chrome/renderer/plugins/chrome_plugin_placeholder.cc
@@ -35,8 +35,6 @@ using blink::WebNode;
 using blink::WebPlugin;
 using blink::WebPluginContainer;
 using blink::WebPluginParams;
-using webkit_glue::CppArgumentList;
-using webkit_glue::CppVariant;
 
 namespace {
 const plugins::PluginPlaceholder* g_last_active_menu = NULL;
@@ -217,11 +215,13 @@ void ChromePluginPlaceholder::OnLoadBlockedPlugins(
   plugins::PluginPlaceholder::OnLoadBlockedPlugins(identifier);
 }
 
+// static
 void ChromePluginPlaceholder::OpenAboutPluginsCallback(
-    const CppArgumentList& args,
-    CppVariant* result) {
+    const v8::FunctionCallbackInfo<v8::Value>& args) {
+  ChromePluginPlaceholder* plugin = reinterpret_cast<ChromePluginPlaceholder*>(
+      v8::External::Cast(*args.Data())->Value());
   RenderThread::Get()->Send(
-      new ChromeViewHostMsg_OpenAboutPlugins(routing_id()));
+      new ChromeViewHostMsg_OpenAboutPlugins(plugin->routing_id()));
 }
 
 void ChromePluginPlaceholder::OnSetIsPrerendering(bool is_prerendering) {
@@ -352,9 +352,10 @@ void ChromePluginPlaceholder::ShowContextMenu(const WebMouseEvent& event) {
   g_last_active_menu = this;
 }
 
-void ChromePluginPlaceholder::BindWebFrame(blink::WebFrame* frame) {
-  plugins::PluginPlaceholder::BindWebFrame(frame);
-  BindCallback("openAboutPlugins",
-               base::Bind(&ChromePluginPlaceholder::OpenAboutPluginsCallback,
-                          base::Unretained(this)));
+void ChromePluginPlaceholder::InstallAdditionalCallbacks(
+    v8::Handle<v8::Template> prototype) {
+  prototype->Set(v8::String::New("openAboutPlugins"),
+                 v8::FunctionTemplate::New(
+                     &ChromePluginPlaceholder::OpenAboutPluginsCallback,
+                     v8::External::New(this))->GetFunction());
 }