Move Partition Allocator into Chromium base.

third_party/WebKit/Source/platform/heap/HeapPage.h

 /*
  * Copyright (C) 2013 Google Inc. 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
@@ skipping 24 matching lines @@
 #include "platform/PlatformExport.h"
 #include "platform/heap/BlinkGC.h"
 #include "platform/heap/GCInfo.h"
 #include "platform/heap/ThreadState.h"
 #include "platform/heap/Visitor.h"
 #include "wtf/AddressSanitizer.h"
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 #include "wtf/ContainerAnnotations.h"
 #include "wtf/Forward.h"
-#include "wtf/allocator/PageAllocator.h"
+#include "wtf/allocator/Partitions.h"
 #include <stdint.h>
 
 namespace blink {
 
 const size_t blinkPageSizeLog2 = 17;
 const size_t blinkPageSize = 1 << blinkPageSizeLog2;
 const size_t blinkPageOffsetMask = blinkPageSize - 1;
 const size_t blinkPageBaseMask = ~blinkPageOffsetMask;
 
 // We allocate pages at random addresses but in groups of
 // blinkPagesPerRegion at a given random address. We group pages to
 // not spread out too much over the address space which would blow
 // away the page tables and lead to bad performance.
 const size_t blinkPagesPerRegion = 10;
 
 // TODO(nya): Replace this with something like #if ENABLE_NACL.
 #if 0
 // NaCl's system page size is 64 KB. This causes a problem in Oilpan's heap
 // layout because Oilpan allocates two guard pages for each blink page
 // (whose size is 128 KB). So we don't use guard pages in NaCl.
 const size_t blinkGuardPageSize = 0;
 #else
-const size_t blinkGuardPageSize = WTF::kSystemPageSize;
+const size_t blinkGuardPageSize = base::kSystemPageSize;
 #endif
 
 // Double precision floats are more efficient when 8 byte aligned, so we 8 byte
 // align all allocations even on 32 bit.
 const size_t allocationGranularity = 8;
 const size_t allocationMask = allocationGranularity - 1;
 const size_t objectStartBitMapSize =
     (blinkPageSize + ((8 * allocationGranularity) - 1)) /
     (8 * allocationGranularity);
 const size_t reservedForObjectBitMap =
@@ skipping 869 matching lines @@
   return outOfLineAllocate(allocationSize, gcInfoIndex);
 }
 
 inline NormalPageArena* NormalPage::arenaForNormalPage() const {
   return static_cast<NormalPageArena*>(arena());
 }
 
 }  // namespace blink
 
 #endif  // HeapPage_h