make v8::Locker not use Isolate::GetCurrent()

test/cctest/test-threads.cc

 // Copyright 2008 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 23 matching lines @@
 
 
 TEST(Preemption) {
   v8::Isolate* isolate = CcTest::isolate();
   v8::Locker locker(isolate);
   v8::V8::Initialize();
   v8::HandleScope scope(isolate);
   v8::Handle<v8::Context> context = v8::Context::New(isolate);
   v8::Context::Scope context_scope(context);
 
-  v8::Locker::StartPreemption(100);
+  v8::Locker::StartPreemption(isolate, 100);
 
   v8::Handle<v8::Script> script = v8::Script::Compile(
       v8::String::New("var count = 0; var obj = new Object(); count++;\n"));
 
   script->Run();
 
-  v8::Locker::StopPreemption();
+  v8::Locker::StopPreemption(isolate);
   v8::internal::OS::Sleep(500);  // Make sure the timer fires.
 
   script->Run();
 }
 
 
 enum Turn {
   FILL_CACHE,
   CLEAN_CACHE,
   SECOND_TIME_FILL_CACHE,
@@ skipping 144 matching lines @@
     Join();
   }
 };
 
 
 TEST(ThreadJoinSelf) {
   ThreadC thread;
   thread.Start();
   thread.Join();
 }