Add back missing allow handle deref scope

src/optimizing-compiler-thread.cc

 // Copyright 2012 the V8 project 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 "src/optimizing-compiler-thread.h"
 
 #include "src/v8.h"
 
 #include "src/base/atomicops.h"
 #include "src/full-codegen.h"
@@ skipping 151 matching lines @@
 OptimizedCompileJob* OptimizingCompilerThread::NextInput(
     bool check_if_flushing) {
   base::LockGuard<base::Mutex> access_input_queue_(&input_queue_mutex_);
   if (input_queue_length_ == 0) return NULL;
   OptimizedCompileJob* job = input_queue_[InputQueueIndex(0)];
   DCHECK_NOT_NULL(job);
   input_queue_shift_ = InputQueueIndex(1);
   input_queue_length_--;
   if (check_if_flushing) {
     if (static_cast<StopFlag>(base::Acquire_Load(&stop_thread_)) != CONTINUE) {
-      if (!job->info()->is_osr()) DisposeOptimizedCompileJob(job, true);
+      if (!job->info()->is_osr()) {
+        AllowHandleDereference allow_handle_dereference;
+        DisposeOptimizedCompileJob(job, true);
+      }
       return NULL;
     }
   }
   return job;
 }
 
 
 void OptimizingCompilerThread::CompileNext(OptimizedCompileJob* job) {
   if (!job) return;
 
@@ skipping 268 matching lines @@
 
 
 bool OptimizingCompilerThread::IsOptimizerThread() {
   base::LockGuard<base::Mutex> lock_guard(&thread_id_mutex_);
   return ThreadId::Current().ToInteger() == thread_id_;
 }
 #endif
 
 
 } }  // namespace v8::internal