Remove ChromeV8Extension & most of ChromeV8Context

chrome/renderer/extensions/app_runtime_custom_bindings.cc

 // Copyright (c) 2012 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/extensions/app_runtime_custom_bindings.h"
 
 #include "base/bind.h"
 #include "base/strings/string_number_conversions.h"
 #include "third_party/WebKit/public/platform/WebCString.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ skipping 39 matching lines @@
   DCHECK(base::StringToInt64(blob_length_string, &blob_length));
   blink::WebBlob web_blob = WebBlob::createFromFile(
       WebString::fromUTF8(blob_file_path), blob_length);
   args.GetReturnValue().Set(web_blob.toV8Value());
 }
 
 }  // namespace
 
 namespace extensions {
 
-AppRuntimeCustomBindings::AppRuntimeCustomBindings(
-    Dispatcher* dispatcher,
-    ChromeV8Context* context) : ChromeV8Extension(dispatcher, context) {
+AppRuntimeCustomBindings::AppRuntimeCustomBindings(ScriptContext* context)
+    : ObjectBackedNativeHandler(context) {
   RouteFunction("DeserializeString", base::Bind(&DeserializeString));
   RouteFunction("SerializeToString", base::Bind(&SerializeToString));
   RouteFunction("CreateBlob", base::Bind(&CreateBlob));
 }
 
 }  // namespace extensions