remove some calls to to-be-deprecated v8::Value::To* functions

content/shell/renderer/test_runner/web_ax_object_proxy.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 "content/shell/renderer/test_runner/web_ax_object_proxy.h"
 
 #include "base/strings/stringprintf.h"
 #include "gin/handle.h"
 #include "third_party/WebKit/public/platform/WebPoint.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
@@ skipping 1090 matching lines @@
     DCHECK(result);
     DCHECK(unwrapped_object);
     if (unwrapped_object->IsEqualToObject(object))
       return elements_.Get(i);
   }
 
   v8::Handle<v8::Value> value_handle = gin::CreateHandle(
       isolate, new WebAXObjectProxy(object, this)).ToV8();
   if (value_handle.IsEmpty())
     return v8::Handle<v8::Object>();
-  v8::Handle<v8::Object> handle = value_handle->ToObject();
+  v8::Handle<v8::Object> handle = value_handle->ToObject(isolate);
   elements_.Append(handle);
   return handle;
 }
 
 v8::Handle<v8::Object> WebAXObjectProxyList::CreateRoot(
     const blink::WebAXObject& object) {
   v8::Isolate* isolate = blink::mainThreadIsolate();
   v8::Handle<v8::Value> value_handle = gin::CreateHandle(
       isolate, new RootWebAXObjectProxy(object, this)).ToV8();
   if (value_handle.IsEmpty())
     return v8::Handle<v8::Object>();
-  v8::Handle<v8::Object> handle = value_handle->ToObject();
+  v8::Handle<v8::Object> handle = value_handle->ToObject(isolate);
   elements_.Append(handle);
   return handle;
 }
 
 }  // namespace content