[DevTools] Add additional accessor check in InjectedScriptSource.js

third_party/WebKit/Source/platform/v8_inspector/V8InjectedScriptHost.cpp

 // Copyright 2015 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 "platform/v8_inspector/V8InjectedScriptHost.h"
 
 #include "platform/inspector_protocol/String16.h"
 #include "platform/v8_inspector/InjectedScriptNative.h"
 #include "platform/v8_inspector/V8Compat.h"
 #include "platform/v8_inspector/V8DebuggerImpl.h"
@@ skipping 49 matching lines @@
 {
     if (info.Length() < 1 || !info[0]->IsObject())
         return;
 
     v8::Local<v8::Object> object = info[0].As<v8::Object>();
     info.GetReturnValue().Set(object->GetConstructorName());
 }
 
 void V8InjectedScriptHost::formatAccessorsAsProperties(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
-    if (info.Length() < 1)
+    DCHECK_EQ(info.Length(), 2);
+    info.GetReturnValue().Set(false);
+    if (!info[1]->IsFunction())
         return;
-
+    // Check that function is user-defined.
+    if (info[1].As<v8::Function>()->ScriptId() != v8::UnboundScript::kNoScriptId)
+        return;
     info.GetReturnValue().Set(unwrapDebugger(info)->client()->formatAccessorsAsProperties(info[0]));
 }
 
 void V8InjectedScriptHost::isTypedArrayCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 1)
         return;
 
     info.GetReturnValue().Set(info[0]->IsTypedArray());
 }
@@ skipping 149 matching lines @@
     DCHECK(info.Length() > 0 && info[0]->IsObject());
     info.GetReturnValue().Set(info[0].As<v8::Object>()->GetPrototype());
 }
 
 v8::Local<v8::Private> V8Debugger::scopeExtensionPrivate(v8::Isolate* isolate)
 {
     return v8::Private::ForApi(isolate, toV8StringInternalized(isolate, "V8Debugger#scopeExtension"));
 }
 
 } // namespace blink