Make platform/heap to use USING_FAST_MALLOC.

third_party/WebKit/Source/web/WebKit.cpp

 /*
  * Copyright (C) 2009 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 145 matching lines @@
 static void adjustAmountOfExternalAllocatedMemory(int size)
 {
     v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory(size);
 }
 
 void initializeWithoutV8(Platform* platform)
 {
     ASSERT(!s_webKitInitialized);
     s_webKitInitialized = true;
 
+    WTF::Partitions::initialize(histogramEnumerationFunction);

[haraken, 2016/01/20 10:52:27]

Shall we make this change separately? (i.e., call Partition::initialize earlier
than Platform::initialize)

[tasak, 2016/01/21 04:37:46]

Sure.
I created https://codereview.chromium.org/1619443002.

     ASSERT(platform);
     Platform::initialize(platform);
 
-    WTF::initialize(currentTimeFunction, monotonicallyIncreasingTimeFunction, histogramEnumerationFunction, adjustAmountOfExternalAllocatedMemory);
+    WTF::initialize(currentTimeFunction, monotonicallyIncreasingTimeFunction, adjustAmountOfExternalAllocatedMemory);
     WTF::initializeMainThread(callOnMainThreadFunction);
     Heap::init();
 
     ThreadState::attachMainThread();
     // currentThread() is null if we are running on a thread without a message loop.
     if (WebThread* currentThread = platform->currentThread()) {
         ASSERT(!s_gcTaskRunner);
         s_gcTaskRunner = new GCTaskRunner(currentThread);
     }
 
@@ skipping 121 matching lines @@
     ASSERT(!reloadPages);
     Page::refreshPlugins();
 }
 
 void decommitFreeableMemory()
 {
     WTF::Partitions::decommitFreeableMemory();
 }
 
 } // namespace blink