Remove ChromeV8Extension & most of ChromeV8Context

chrome/renderer/extensions/sync_file_system_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/sync_file_system_custom_bindings.h"
 
 #include <string>
 
-#include "chrome/common/extensions/extension_constants.h"
-#include "chrome/renderer/extensions/chrome_v8_context.h"
+#include "extensions/renderer/script_context.h"
 #include "third_party/WebKit/public/web/WebDOMFileSystem.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "v8/include/v8.h"
 #include "webkit/common/fileapi/file_system_util.h"
 
 namespace extensions {
 
 SyncFileSystemCustomBindings::SyncFileSystemCustomBindings(
-    Dispatcher* dispatcher, ChromeV8Context* context)
-    : ChromeV8Extension(dispatcher, context) {
+    ScriptContext* context)
+    : ObjectBackedNativeHandler(context) {
   RouteFunction(
       "GetSyncFileSystemObject",
       base::Bind(&SyncFileSystemCustomBindings::GetSyncFileSystemObject,
                  base::Unretained(this)));
 }
 
 void SyncFileSystemCustomBindings::GetSyncFileSystemObject(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   if (args.Length() != 2) {
     NOTREACHED();
@@ skipping 23 matching lines @@
       blink::WebLocalFrame::frameForContext(context()->v8_context());
   args.GetReturnValue().Set(
       blink::WebDOMFileSystem::create(
           webframe,
           blink::WebFileSystemTypeExternal,
           blink::WebString::fromUTF8(name),
           GURL(root_url)).toV8Value());
 }
 
 }  // namespace extensions