[heap] No leakage of incremental-marking.h outside of heap.

src/heap/heap.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.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
 // Clients of this interface shouldn't depend on lots of heap internals.
 // Do not include anything from src/heap here!
 #include "src/allocation.h"
 #include "src/assert-scope.h"
 #include "src/atomic-utils.h"
 #include "src/globals.h"
-// TODO(mstarzinger): Three more includes to kill!
-#include "src/heap/incremental-marking.h"
+// TODO(mstarzinger): Two more includes to kill!
 #include "src/heap/spaces.h"
 #include "src/heap/store-buffer.h"
 #include "src/list.h"
 
 namespace v8 {
 namespace internal {
 
 // Defines all the roots in Heap.
 #define STRONG_ROOT_LIST(V)                                                    \
   V(Map, byte_array_map, ByteArrayMap)                                         \
@@ skipping 1179 matching lines @@
   // Performs a full garbage collection.  If (flags & kMakeHeapIterableMask) is
   // non-zero, then the slower precise sweeper is used, which leaves the heap
   // in a state where we can iterate over the heap visiting all objects.
   void CollectAllGarbage(
       int flags = kFinalizeIncrementalMarkingMask, const char* gc_reason = NULL,
       const GCCallbackFlags gc_callback_flags = kNoGCCallbackFlags);
 
   // Last hope GC, should try to squeeze as much as possible.
   void CollectAllAvailableGarbage(const char* gc_reason = NULL);
 
+  // Reports and external memory pressure event, either performs a major GC or
+  // completes incremental marking in order to free external resources.
+  void ReportExternalMemoryPressure(const char* gc_reason = NULL);
+
   // Invoked when GC was requested via the stack guard.
   void HandleGCRequest();
 
   // ===========================================================================
   // Iterators. ================================================================
   // ===========================================================================
 
   // Iterates over all roots in the heap.
   void IterateRoots(ObjectVisitor* v, VisitMode mode);
   // Iterates over all strong roots in the heap.
@@ skipping 32 matching lines @@
   // incremental steps.
   void StartIdleIncrementalMarking();
 
   // Starts incremental marking assuming incremental marking is currently
   // stopped.
   void StartIncrementalMarking(int gc_flags = kNoGCFlags,
                                const GCCallbackFlags gc_callback_flags =
                                    GCCallbackFlags::kNoGCCallbackFlags,
                                const char* reason = nullptr);
 
-  // Performs incremental marking steps of step_size_in_bytes as long as
-  // deadline_ins_ms is not reached. step_size_in_bytes can be 0 to compute
-  // an estimate increment. Returns the remaining time that cannot be used
-  // for incremental marking anymore because a single step would exceed the
-  // deadline.
-  double AdvanceIncrementalMarking(
-      intptr_t step_size_in_bytes, double deadline_in_ms,
-      IncrementalMarking::StepActions step_actions);
-
   void FinalizeIncrementalMarkingIfComplete(const char* comment);
 
   bool TryFinalizeIdleIncrementalMarking(double idle_time_in_ms);
 
-  IncrementalMarking* incremental_marking() { return &incremental_marking_; }
+  IncrementalMarking* incremental_marking() { return incremental_marking_; }
 
   // ===========================================================================
   // External string table API. ================================================
   // ===========================================================================
 
   // Registers an external string.
   inline void RegisterExternalString(String* string);
 
   // Finalizes an external string by deleting the associated external
   // data and clearing the resource pointer.
@@ skipping 969 matching lines @@
 
   // Last time a garbage collection happened.
   double last_gc_time_;
 
   Scavenger* scavenge_collector_;
 
   MarkCompactCollector* mark_compact_collector_;
 
   StoreBuffer store_buffer_;
 
-  IncrementalMarking incremental_marking_;
+  IncrementalMarking* incremental_marking_;
 
   GCIdleTimeHandler* gc_idle_time_handler_;
 
   MemoryReducer* memory_reducer_;
 
   ObjectStats* object_stats_;
 
   ScavengeJob* scavenge_job_;
 
   // These two counters are monotomically increasing and never reset.
@@ skipping 431 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_