Thread-safe JS execution

src/GlobalJsObject.cpp

 #include "GlobalJsObject.h"
 
 using namespace AdblockPlus;
 
 v8::Handle<v8::ObjectTemplate> GlobalJsObject::Create(
   ErrorCallback& errorCallback)
 {
+  const v8::Locker locker(v8::Isolate::GetCurrent());
   v8::HandleScope handleScope;
   const v8::Handle<v8::ObjectTemplate> global = v8::ObjectTemplate::New();
   const v8::Handle<v8::ObjectTemplate> console =
     AdblockPlus::ConsoleJsObject::Create(errorCallback);
   global->Set(v8::String::New("console"), console);
   return handleScope.Close(global);
 }