bindings: Use CreateDataProperty() instead of ForceSet()

Source/bindings/core/v8/custom/V8InjectedScriptHostCustom.cpp

 /*
  * Copyright (C) 2007-2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 547 matching lines @@
 
     host->client()->unmuteWarningsAndDeprecations();
 }
 
 void V8InjectedScriptHost::setNonEnumPropertyMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 3 || !info[0]->IsObject() || !info[1]->IsString())
         return;
 
     v8::Local<v8::Object> object = info[0].As<v8::Object>();
-    object->ForceSet(info.GetIsolate()->GetCurrentContext(), info[1], info[2], v8::DontEnum);
+    v8::Local<v8::String> key = info[1].As<v8::String>();
+    auto unused = object->DefineOwnProperty(info.GetIsolate()->GetCurrentContext(), key, info[2], v8::DontEnum);

[bashi, 2015/06/03 03:05:30]

This causes an exception.

+    ALLOW_UNUSED_LOCAL(unused);
 }
 
 void V8InjectedScriptHost::bindMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 2 || !info[1]->IsString())
         return;
     InjectedScriptNative* injectedScriptNative = InjectedScriptNative::fromInjectedScriptHost(info.Holder());
     if (!injectedScriptNative)
         return;
 
@@ skipping 23 matching lines @@
     InjectedScriptNative* injectedScriptNative = InjectedScriptNative::fromInjectedScriptHost(info.Holder());
     if (!injectedScriptNative)
         return;
     int id = info[0].As<v8::Int32>()->Value();
     String groupName = injectedScriptNative->groupName(id);
     if (!groupName.isEmpty())
         info.GetReturnValue().Set(v8String(info.GetIsolate(), groupName));
 }
 
 } // namespace blink