Cleanup base profiler initialization code.

base/threading/thread_local_android.cc

 // Copyright 2014 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.
 
 #include "base/threading/thread_local.h"
 
-#include "base/logging.h"
-
 namespace base {
 namespace internal {
 
 // static
 void ThreadLocalPlatform::AllocateSlot(SlotType* slot) {
-  bool succeed = slot->Initialize(NULL);
-  CHECK(succeed);
+  slot->Initialize(nullptr);
 }
 
 // static
 void ThreadLocalPlatform::FreeSlot(SlotType slot) {
   slot.Free();
 }
 
 // static
 void* ThreadLocalPlatform::GetValueFromSlot(SlotType slot) {
   return slot.Get();
 }
 
 // static
 void ThreadLocalPlatform::SetValueInSlot(SlotType slot, void* value) {
   slot.Set(value);
 }
 
 }  // namespace internal
 }  // namespace base