Revert 184837

chrome/renderer/extensions/runtime_custom_bindings.cc

Index: chrome/renderer/extensions/runtime_custom_bindings.cc
===================================================================
--- chrome/renderer/extensions/runtime_custom_bindings.cc	(revision 184858)
+++ chrome/renderer/extensions/runtime_custom_bindings.cc	(working copy)
@@ -18,10 +18,8 @@
 
 namespace extensions {
 
-RuntimeCustomBindings::RuntimeCustomBindings(Dispatcher* dispatcher,
-                                             ChromeV8Context* context)
-    : ChromeV8Extension(dispatcher, context->v8_context()),
-      context_(context) {
+RuntimeCustomBindings::RuntimeCustomBindings(ChromeV8Context* context)
+    : ChromeV8Extension(NULL), context_(context) {
   RouteFunction("GetManifest",
       base::Bind(&RuntimeCustomBindings::GetManifest, base::Unretained(this)));
   RouteStaticFunction("OpenChannelToExtension", &OpenChannelToExtension);
@@ -35,8 +33,7 @@
     const v8::Arguments& args) {
   // Get the current RenderView so that we can send a routed IPC message from
   // the correct source.
-  RuntimeCustomBindings* self = GetFromArguments<RuntimeCustomBindings>(args);
-  content::RenderView* renderview = self->GetRenderView();
+  content::RenderView* renderview = GetCurrentRenderView();
   if (!renderview)
     return v8::Undefined();
 
@@ -64,8 +61,7 @@
     const v8::Arguments& args) {
   // Get the current RenderView so that we can send a routed IPC message from
   // the correct source.
-  RuntimeCustomBindings* self = GetFromArguments<RuntimeCustomBindings>(args);
-  content::RenderView* renderview = self->GetRenderView();
+  content::RenderView* renderview = GetCurrentRenderView();
   if (!renderview)
     return v8::Undefined();