Moved zones and zone related stuff in its own directory.

src/zone/accounting-allocator.h

 // Copyright 2016 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_BASE_ACCOUNTING_ALLOCATOR_H_

[jochen (gone - plz use gerrit), 2016/09/16 13:14:52]

please update this to V8_SRC_ZONE_ACCOUNTING...

[heimbuef, 2016/09/16 13:49:53]

Done.

 #define V8_BASE_ACCOUNTING_ALLOCATOR_H_
 
+#include "include/v8-platform.h"
+#include "src/base/atomic-utils.h"
 #include "src/base/atomicops.h"
 #include "src/base/macros.h"
+#include "src/base/platform/mutex.h"
+#include "src/base/platform/semaphore.h"
+#include "src/base/platform/time.h"
+#include "src/zone/zone-segment.h"
 
 namespace v8 {
-namespace base {
+namespace internal {
 
 class AccountingAllocator {
  public:
   AccountingAllocator() = default;
   virtual ~AccountingAllocator() = default;
 
-  // Returns nullptr on failed allocation.
-  virtual void* Allocate(size_t bytes);
-  virtual void Free(void* memory, size_t bytes);
+  virtual Segment* AllocateSegment(size_t bytes);
+  virtual void FreeSegment(Segment* memory);
 
   size_t GetCurrentMemoryUsage() const;
   size_t GetMaxMemoryUsage() const;
 
  private:
-  AtomicWord current_memory_usage_ = 0;
-  AtomicWord max_memory_usage_ = 0;
+  base::AtomicWord current_memory_usage_ = 0;
+  base::AtomicWord max_memory_usage_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(AccountingAllocator);
 };
 
-}  // namespace base
+}  // namespace internal
 }  // namespace v8
 
 #endif  // V8_BASE_ACCOUNTING_ALLOCATOR_H_