Introduce a holder for compile jobs

src/compiler-dispatcher/compiler-dispatcher-job.h

+// Copyright 2016 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.
+
+#ifndef V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_JOB_H_
+#define V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_JOB_H_
+
+#include "src/base/macros.h"
+
+#include "src/handles.h"
+
+namespace v8 {
+namespace internal {
+
+class CompilationInfo;
+class Isolate;
+class JSFunction;
+
+enum class CompileJobStatus {
+  kInitial,
+};
+
+class CompilerDispatcherJob {
+ public:
+  CompilerDispatcherJob(Isolate* isolate, Handle<JSFunction> function);
+  ~CompilerDispatcherJob();
+
+  CompileJobStatus status() const { return status_; }
+
+ private:
+  CompileJobStatus status_ = CompileJobStatus::kInitial;
+  Isolate* isolate_;
+  Handle<JSFunction> function_;  // Global handle.
+
+  DISALLOW_COPY_AND_ASSIGN(CompilerDispatcherJob);
+};
+
+}  // namespace internal
+}  // namespace v8
+
+#endif  // V8_COMPILER_DISPATCHER_COMPILER_DISPATCHER_JOB_H_