[heap] Untangle Marking and friends from heap dependencies.

src/heap/spaces-inl.h

 // Copyright 2011 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_SPACES_INL_H_
 #define V8_HEAP_SPACES_INL_H_
 
 #include "src/heap/incremental-marking.h"
 #include "src/heap/spaces.h"
 #include "src/isolate.h"
@@ skipping 16 matching lines @@
   operator++();
   return tmp;
 }
 
 NewSpacePageRange::NewSpacePageRange(Address start, Address limit)
     : range_(Page::FromAddress(start),
              Page::FromAllocationAreaAddress(limit)->next_page()) {
   SemiSpace::AssertValidRange(start, limit);
 }
 
-// -----------------------------------------------------------------------------
-// Bitmap
-
-void Bitmap::Clear(MemoryChunk* chunk) {
-  Bitmap* bitmap = chunk->markbits();
-  for (int i = 0; i < bitmap->CellsCount(); i++) bitmap->cells()[i] = 0;
-  chunk->ResetLiveBytes();
-}
-
-void Bitmap::SetAllBits(MemoryChunk* chunk) {
-  Bitmap* bitmap = chunk->markbits();
-  for (int i = 0; i < bitmap->CellsCount(); i++)
-    bitmap->cells()[i] = 0xffffffff;
-}
-
 
 // -----------------------------------------------------------------------------
 // SemiSpaceIterator
 
 HeapObject* SemiSpaceIterator::Next() {
   while (current_ != limit_) {
     if (Page::IsAlignedToPageSize(current_)) {
       Page* page = Page::FromAllocationAreaAddress(current_);
       page = page->next_page();
       DCHECK(!page->is_anchor());
@@ skipping 584 matching lines @@
     other->allocation_info_.Reset(nullptr, nullptr);
     return true;
   }
   return false;
 }
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_SPACES_INL_H_