Revert of Move ProcessHeap::isLowEndDevice to MemoryCoordinator

third_party/WebKit/Source/platform/heap/Heap.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 105 matching lines @@
 
 class PLATFORM_EXPORT ProcessHeap {
   STATIC_ONLY(ProcessHeap);
 
  public:
   static void init();
   static void shutdown();
 
   static CrossThreadPersistentRegion& crossThreadPersistentRegion();
 
+  static bool isLowEndDevice() { return s_isLowEndDevice; }
   static void increaseTotalAllocatedObjectSize(size_t delta) {
     atomicAdd(&s_totalAllocatedObjectSize, static_cast<long>(delta));
   }
   static void decreaseTotalAllocatedObjectSize(size_t delta) {
     atomicSubtract(&s_totalAllocatedObjectSize, static_cast<long>(delta));
   }
   static size_t totalAllocatedObjectSize() {
     return acquireLoad(&s_totalAllocatedObjectSize);
   }
   static void increaseTotalMarkedObjectSize(size_t delta) {
@@ skipping 11 matching lines @@
   static void decreaseTotalAllocatedSpace(size_t delta) {
     atomicSubtract(&s_totalAllocatedSpace, static_cast<long>(delta));
   }
   static size_t totalAllocatedSpace() {
     return acquireLoad(&s_totalAllocatedSpace);
   }
   static void resetHeapCounters();
 
  private:
   static bool s_shutdownComplete;
+  static bool s_isLowEndDevice;
   static size_t s_totalAllocatedSpace;
   static size_t s_totalAllocatedObjectSize;
   static size_t s_totalMarkedObjectSize;
 
   friend class ThreadState;
 };
 
 // Stats for the heap.
 class ThreadHeapStats {
   USING_FAST_MALLOC(ThreadHeapStats);
@@ skipping 503 matching lines @@
 template <typename T>
 void VisitorHelper<Derived>::handleWeakCell(Visitor* self, void* object) {
   T** cell = reinterpret_cast<T**>(object);
   if (*cell && !ObjectAliveTrait<T>::isHeapObjectAlive(*cell))
     *cell = nullptr;
 }
 
 }  // namespace blink
 
 #endif  // Heap_h