[build] Import v8@23682 since v8@23704 doesn't work on x64

Here is stack trace from v8@23704:
	evita.exe!v8::internal::MarkCompactCollector::StartSweeperThreads() Line 565	C++
 	evita.exe!v8::internal::MarkCompactCollector::SweepSpaces() Line 4294	C++
 	evita.exe!v8::internal::MarkCompactCollector::CollectGarbage() Line 423	C++
 	evita.exe!v8::internal::Heap::MarkCompact() Line 1188	C++
 	evita.exe!v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector collector, const v8::GCCallbackFlags gc_callback_flags) Line 1077	C++
 	evita.exe!v8::internal::Heap::CollectGarbage(v8::internal::GarbageCollector collector, const char * gc_reason, const char * collector_reason, const v8::GCCallbackFlags gc_callback_flags) Line 840	C++
 	evita.exe!v8::internal::Heap::CollectAllAvailableGarbage(const char * gc_reason) Line 759	C++
 	evita.exe!v8::internal::Factory::NewFixedArrayWithHoles(int size, v8::internal::PretenureFlag pretenure) Line 81	C++
 	evita.exe!v8::internal::Factory::NewJSArrayStorage(v8::internal::Handle<v8::internal::JSArray> array, int length, int capacity, v8::internal::ArrayStorageAllocationMode mode) Line 1674	C++
 	evita.exe!v8::internal::Factory::NewJSArray(v8::internal::ElementsKind elements_kind, int length, int capacity, v8::internal::ArrayStorageAllocationMode mode, v8::internal::PretenureFlag) Line 1630	C++
 	evita.exe!v8::Array::New(v8::Isolate * isolate, int length) Line 5792	C++
 	evita.exe!dom::internal::`anonymous namespace'::CreateUnicode(v8::Isolate * isolate) Line 148	C++
 	evita.exe!dom::internal::GetUnicodeObject(v8::Isolate * isolate) Line 204	C++
 	evita.exe!dom::Global::object_template(v8::Isolate * isolate) Line 151	C++
 	evita.exe!dom::ScriptHost::GetGlobalTemplate(v8_glue::Runner * runner) Line 310	C++
 	evita.exe!v8_glue::Runner::Runner(v8::Isolate * isoalte, v8_glue::RunnerDelegate *) Line 91	C++
 	evita.exe!dom::ScriptHost::Start(dom::ViewDelegate * view_delegate, domapi::IoDelegate * io_deleage) Line 255	C++
 	evita.exe!base::MessageLoop::RunTask(const base::PendingTask & pending_task) Line 445	C++
 	evita.exe!base::MessageLoop::DoWork() Line 569	C++
 	evita.exe!base::MessagePumpDefault::Run(base::MessagePump::Delegate * delegate) Line 32	C++
 	evita.exe!base::MessageLoop::RunHandler() Line 394	C++
 	evita.exe!base::RunLoop::Run() Line 50	C++
 	evita.exe!base::Thread::Run(base::MessageLoop * message_loop) Line 172	C++
 	evita.exe!base::Thread::ThreadMain() Line 229	C++
 	evita.exe!base::`anonymous namespace'::ThreadFunc(void * params) Line 80	C++
 	[External Code]