[heap] Make the Marking class all static.

src/heap/mark-compact.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/base/atomicops.h"
 #include "src/base/bits.h"
 #include "src/code-stubs.h"
 #include "src/compilation-cache.h"
@@ skipping 570 matching lines @@
     // to only refill them for the old space.
     return;
   }
 
   intptr_t freed_bytes = space->free_list()->Concatenate(free_list);
   space->AddToAccountingStats(freed_bytes);
   space->DecrementUnsweptFreeBytes(freed_bytes);
 }
 
 
-void Marking::TransferMark(Address old_start, Address new_start) {
+void Marking::TransferMark(Heap* heap, Address old_start, Address new_start) {
   // This is only used when resizing an object.
   DCHECK(MemoryChunk::FromAddress(old_start) ==
          MemoryChunk::FromAddress(new_start));
 
-  if (!heap_->incremental_marking()->IsMarking()) return;
+  if (!heap->incremental_marking()->IsMarking()) return;
 
   // If the mark doesn't move, we don't check the color of the object.
   // It doesn't matter whether the object is black, since it hasn't changed
   // size, so the adjustment to the live data count will be zero anyway.
   if (old_start == new_start) return;
 
   MarkBit new_mark_bit = MarkBitFrom(new_start);
   MarkBit old_mark_bit = MarkBitFrom(old_start);
 
 #ifdef DEBUG
   ObjectColor old_color = Color(old_mark_bit);
 #endif
 
   if (Marking::IsBlack(old_mark_bit)) {
     Marking::BlackToWhite(old_mark_bit);
     Marking::MarkBlack(new_mark_bit);
     return;
   } else if (Marking::IsGrey(old_mark_bit)) {
     Marking::GreyToWhite(old_mark_bit);
-    heap_->incremental_marking()->WhiteToGreyAndPush(
+    heap->incremental_marking()->WhiteToGreyAndPush(
         HeapObject::FromAddress(new_start), new_mark_bit);
-    heap_->incremental_marking()->RestartIfNotMarking();
+    heap->incremental_marking()->RestartIfNotMarking();
   }
 
 #ifdef DEBUG
   ObjectColor new_color = Color(new_mark_bit);
   DCHECK(new_color == old_color);
 #endif
 }
 
 
 const char* AllocationSpaceName(AllocationSpace space) {
@@ skipping 4146 matching lines @@
   SlotsBuffer* buffer = *buffer_address;
   while (buffer != NULL) {
     SlotsBuffer* next_buffer = buffer->next();
     DeallocateBuffer(buffer);
     buffer = next_buffer;
   }
   *buffer_address = NULL;
 }
 }  // namespace internal
 }  // namespace v8