[heap] Reland: Take page lock when scavenging old to new references in Scavenger.

src/heap/spaces.cc

 // 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.
 
 #include "src/heap/spaces.h"
 
 #include <utility>
 
 #include "src/base/bits.h"
 #include "src/base/platform/platform.h"
@@ skipping 517 matching lines @@
   chunk->set_owner(owner);
   chunk->InitializeReservedMemory();
   chunk->slot_set_[OLD_TO_NEW].SetValue(nullptr);
   chunk->slot_set_[OLD_TO_OLD].SetValue(nullptr);
   chunk->typed_slot_set_[OLD_TO_NEW].SetValue(nullptr);
   chunk->typed_slot_set_[OLD_TO_OLD].SetValue(nullptr);
   chunk->skip_list_ = nullptr;
   chunk->progress_bar_ = 0;
   chunk->high_water_mark_.SetValue(static_cast<intptr_t>(area_start - base));
   chunk->concurrent_sweeping_state().SetValue(kSweepingDone);
-  chunk->mutex_ = new base::Mutex();
+  chunk->mutex_ = new base::RecursiveMutex();
   chunk->available_in_free_list_ = 0;
   chunk->wasted_memory_ = 0;
   chunk->young_generation_bitmap_ = nullptr;
   chunk->set_next_chunk(nullptr);
   chunk->set_prev_chunk(nullptr);
   chunk->local_tracker_ = nullptr;
 
   MarkingState::Internal(chunk).ClearLiveness();
 
   DCHECK(OFFSET_OF(MemoryChunk, flags_) == kFlagsOffset);
@@ skipping 2765 matching lines @@
     PrintF("\n");
   }
   printf(" --------------------------------------\n");
   printf(" Marked: %x, LiveCount: %" V8PRIdPTR "\n", mark_size,
          MarkingState::Internal(this).live_bytes());
 }
 
 #endif  // DEBUG
 }  // namespace internal
 }  // namespace v8