Move Partition Allocator into Chromium base.

third_party/WebKit/Source/wtf/HashSet.h

Index: third_party/WebKit/Source/wtf/HashSet.h
diff --git a/third_party/WebKit/Source/wtf/HashSet.h b/third_party/WebKit/Source/wtf/HashSet.h
index 72b97fcd01be40bcd511827674085712d296436d..5192051259904daa8fa05c06334064d21db975cc 100644
--- a/third_party/WebKit/Source/wtf/HashSet.h
+++ b/third_party/WebKit/Source/wtf/HashSet.h
@@ -21,8 +21,8 @@
 #ifndef WTF_HashSet_h
 #define WTF_HashSet_h
 
+#include "base/allocator/partition_allocator/partition_allocator.h"
 #include "wtf/HashTable.h"
-#include "wtf/allocator/PartitionAllocator.h"
 #include <initializer_list>
 
 namespace WTF {
@@ -37,7 +37,7 @@ template <typename ValueArg,
           typename TraitsArg = HashTraits<ValueArg>,
           typename Allocator = PartitionAllocator>
 class HashSet {
-  WTF_USE_ALLOCATOR(HashSet, Allocator);
+  USE_ALLOCATOR(HashSet, Allocator);
 
  private:
   typedef HashArg HashFunctions;