A64: Synchronize with r16489.

src/v8.cc

Index: src/v8.cc
diff --git a/src/v8.cc b/src/v8.cc
index 2933a94e7ab559b048c870270412e7ffa1433c00..a5ff145d6c5478f3d93388c05045f66e8a688745 100644
--- a/src/v8.cc
+++ b/src/v8.cc
@@ -50,7 +50,6 @@ namespace internal {
 
 V8_DECLARE_ONCE(init_once);
 
-bool V8::is_running_ = false;
 bool V8::has_been_set_up_ = false;
 bool V8::has_been_disposed_ = false;
 bool V8::has_fatal_error_ = false;
@@ -85,7 +84,6 @@ bool V8::Initialize(Deserializer* des) {
   Isolate* isolate = Isolate::Current();
   if (isolate->IsInitialized()) return true;
 
-  is_running_ = true;
   has_been_set_up_ = true;
   has_fatal_error_ = false;
   has_been_disposed_ = false;
@@ -95,7 +93,6 @@ bool V8::Initialize(Deserializer* des) {
 
 
 void V8::SetFatalError() {
-  is_running_ = false;
   has_fatal_error_ = true;
 }
 
@@ -118,7 +115,6 @@ void V8::TearDown() {
   RegisteredExtension::UnregisterAll();
   Isolate::GlobalTearDown();
 
-  is_running_ = false;
   has_been_disposed_ = true;
 
   delete call_completed_callbacks_;
@@ -135,7 +131,7 @@ static void seed_random(uint32_t* state) {
       state[i] = FLAG_random_seed;
     } else if (entropy_source != NULL) {
       uint32_t val;
-      ScopedLock lock(entropy_mutex.Pointer());
+      LockGuard<Mutex> lock_guard(entropy_mutex.Pointer());
       entropy_source(reinterpret_cast<unsigned char*>(&val), sizeof(uint32_t));
       state[i] = val;
     } else {