[Api] Add an idle time garbage collection callback flag to GCCallbackFlags.

include/v8.h

 // 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.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 6168 matching lines @@
  * GCCallbackFlags is used to notify additional information about the GC
  * callback.
  *   - kGCCallbackFlagConstructRetainedObjectInfos: The GC callback is for
  *     constructing retained object infos.
  *   - kGCCallbackFlagForced: The GC callback is for a forced GC for testing.
  *   - kGCCallbackFlagSynchronousPhantomCallbackProcessing: The GC callback
  *     is called synchronously without getting posted to an idle task.
  *   - kGCCallbackFlagCollectAllAvailableGarbage: The GC callback is called
  *     in a phase where V8 is trying to collect all available garbage
  *     (e.g., handling a low memory notification).
+ *   - kGCCallbackScheduleIdleCollectGarbage: The GC callback is called to
+ *     trigger an idle garbage collection.
  */
 enum GCCallbackFlags {
   kNoGCCallbackFlags = 0,
   kGCCallbackFlagConstructRetainedObjectInfos = 1 << 1,
   kGCCallbackFlagForced = 1 << 2,
   kGCCallbackFlagSynchronousPhantomCallbackProcessing = 1 << 3,
   kGCCallbackFlagCollectAllAvailableGarbage = 1 << 4,
   kGCCallbackFlagCollectAllExternalMemory = 1 << 5,
+  kGCCallbackScheduleIdleCollectGarbage = 1 << 6,
 };
 
 typedef void (*GCCallback)(GCType type, GCCallbackFlags flags);
 
 typedef void (*InterruptCallback)(Isolate* isolate, void* data);
 
 
 /**
  * Collection of V8 heap information.
  *
@@ skipping 3896 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // INCLUDE_V8_H_