Use V8 Maybe APIs in extensions/renderer

extensions/renderer/send_request_natives.cc

 // Copyright 2014 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 "extensions/renderer/send_request_natives.h"
 
 #include "base/json/json_reader.h"
 #include "content/public/child/v8_value_converter.h"
 #include "extensions/renderer/request_sender.h"
 #include "extensions/renderer/script_context.h"
@@ skipping 20 matching lines @@
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   args.GetReturnValue().Set(
       static_cast<int32_t>(request_sender_->GetNextRequestId()));
 }
 
 // Starts an API request to the browser, with an optional callback.  The
 // callback will be dispatched to EventBindings::HandleResponse.
 void SendRequestNatives::StartRequest(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK_EQ(6, args.Length());
+  CHECK(args[2]->IsInt32());
+  v8::Local<v8::Context> v8_context = context()->v8_context();
   std::string name = *v8::String::Utf8Value(args[0]);
-  int request_id = args[2]->Int32Value();
-  bool has_callback = args[3]->BooleanValue();
-  bool for_io_thread = args[4]->BooleanValue();
-  bool preserve_null_in_objects = args[5]->BooleanValue();
+  int request_id = args[2].As<v8::Int32>()->Value();
+  bool has_callback = args[3]->BooleanValue(v8_context).FromJust();
+  bool for_io_thread = args[4]->BooleanValue(v8_context).FromJust();
+  bool preserve_null_in_objects = args[5]->BooleanValue(v8_context).FromJust();
 
   scoped_ptr<V8ValueConverter> converter(V8ValueConverter::create());
 
   // See http://crbug.com/149880. The context menus APIs relies on this, but
   // we shouldn't really be doing it (e.g. for the sake of the storage API).
   converter->SetFunctionAllowed(true);
 
   if (!preserve_null_in_objects)
     converter->SetStripNullFromObjects(true);
 
@@ skipping 15 matching lines @@
 
 void SendRequestNatives::GetGlobal(
     const v8::FunctionCallbackInfo<v8::Value>& args) {
   CHECK_EQ(1, args.Length());
   CHECK(args[0]->IsObject());
   args.GetReturnValue().Set(
       v8::Local<v8::Object>::Cast(args[0])->CreationContext()->Global());
 }
 
 }  // namespace extensions