Perform TODO(gc) cleanup for TODO-lockdown.

src/incremental-marking.h

 // Copyright 2011 the V8 project authors. 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
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 19 matching lines @@
 
 
 #include "execution.h"
 #include "mark-compact.h"
 #include "objects.h"
 
 namespace v8 {
 namespace internal {
 
 
-// TODO(gc) rename into IncrementalMarker after merge.
 class IncrementalMarking {
  public:
   enum State {
     STOPPED,
     SWEEPING,
     MARKING,
     COMPLETE
   };
 
   explicit IncrementalMarking(Heap* heap);
@@ skipping 189 matching lines @@
   bool should_hurry_;
   int allocation_marking_factor_;
   intptr_t allocated_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(IncrementalMarking);
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_INCREMENTAL_MARKING_H_