Merge WTF::initializeMainThread into WTF::initialize

third_party/WebKit/Source/platform/MemoryPurgeController.h

 // Copyright 2015 The Chromium 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 MemoryPurgeController_h
 #define MemoryPurgeController_h
 
 #include "platform/PlatformExport.h"
 #include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebMemoryPressureLevel.h"
-#include "wtf/MainThread.h"
 
 namespace blink {
 
 enum class DeviceKind {
     NotSpecified,
     LowEnd,
 };
 
 // Classes which have discardable/reducible memory can implement this
 // interface to be informed when they should reduce memory consumption.
@@ skipping 49 matching lines @@
 private:
     MemoryPurgeController();
 
     WillBeHeapHashSet<RawPtrWillBeWeakMember<MemoryPurgeClient>> m_clients;
     DeviceKind m_deviceKind;
 };
 
 } // namespace blink
 
 #endif // MemoryPurgeController_h