Revert recent changes to base::Value

chrome/renderer/extensions/extension_process_bindings.cc

 // Copyright (c) 2011 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/extension_process_bindings.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 449 matching lines @@
   // Starts an API request to the browser, with an optional callback.  The
   // callback will be dispatched to EventBindings::HandleResponse.
   static v8::Handle<v8::Value> StartRequest(const v8::Arguments& args) {
     std::string str_args = *v8::String::Utf8Value(args[1]);
     base::JSONReader reader;
     scoped_ptr<Value> value_args;
     value_args.reset(reader.JsonToValue(str_args, false, false));
 
     // Since we do the serialization in the v8 extension, we should always get
     // valid JSON.
-    if (!value_args.get() || !value_args->AsList()) {
+    if (!value_args.get() || !value_args->IsType(Value::TYPE_LIST)) {
       NOTREACHED() << "Invalid JSON passed to StartRequest.";
       return v8::Undefined();
     }
 
-    return StartRequestCommon(args, value_args->AsList());
+    return StartRequestCommon(args, static_cast<ListValue*>(value_args.get()));
   }
 
   static bool ConvertImageDataToBitmapValue(
       const v8::Arguments& args, Value** bitmap_value) {
     v8::Local<v8::Object> extension_args = args[1]->ToObject();
     v8::Local<v8::Object> details =
         extension_args->Get(v8::String::New("0"))->ToObject();
     v8::Local<v8::Object> image_data =
         details->Get(v8::String::New("imageData"))->ToObject();
     v8::Local<v8::Object> data =
@@ skipping 111 matching lines @@
   if (!retval.IsEmpty() && !retval->IsUndefined()) {
     std::string error = *v8::String::AsciiValue(retval);
     DCHECK(false) << error;
   }
 #endif
 
   request->second->context.Dispose();
   request->second->context.Clear();
   pending_requests.erase(request);
 }