Oilpan: An Oilpan idle GC should follow a V8 major GC

Source/platform/heap/ThreadState.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 208 matching lines @@
         SetPoison,
         ClearPoison,
     };
 
     enum ObjectsToPoison {
         UnmarkedOnly,
         MarkedAndUnmarked,
     };
 #endif
 
+    enum V8GCType {
+        V8MinorGC,
+        V8MajorGC,
+    };
+
     // The NoAllocationScope class is used in debug mode to catch unwanted
     // allocations. E.g. allocations during GC.
     class NoAllocationScope final {
     public:
         explicit NoAllocationScope(ThreadState* state) : m_state(state)
         {
             m_state->enterNoAllocationScope();
         }
         ~NoAllocationScope()
         {
@@ skipping 82 matching lines @@
 #if ENABLE(ASSERT)
     bool checkThread() const { return m_thread == currentThread(); }
 #endif
 
     void performIdleGC(double deadlineSeconds);
     void performIdleLazySweep(double deadlineSeconds);
 
     void scheduleIdleGC();
     void scheduleIdleLazySweep();
     void schedulePreciseGC();
-    void scheduleV8FollowupGCIfNeeded();
+    void scheduleV8FollowupGCIfNeeded(V8GCType);
     void schedulePageNavigationGCIfNeeded(float estimatedRemovalRatio);
     void schedulePageNavigationGC();
     void scheduleGCIfNeeded();
     void setGCState(GCState);
     GCState gcState() const;
     bool isInGC() const { return gcState() == GCRunning; }
     bool isSweepingInProgress() const
     {
         return gcState() == Sweeping || gcState() == SweepingAndPreciseGCScheduled || gcState() == SweepingAndIdleGCScheduled;
     }
@@ skipping 484 matching lines @@
 };
 
 template<> class ThreadStateFor<AnyThread> {
 public:
     static ThreadState* state() { return ThreadState::current(); }
 };
 
 } // namespace blink
 
 #endif // ThreadState_h