Remove unused memory functions

third_party/WebKit/public/platform/Platform.h

 /*
  * Copyright (C) 2012 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 258 matching lines @@
     // Return the available virtual memory of the current machine, in MB. Or
     // zero, if there is no limit.
     virtual size_t virtualMemoryLimitMB() { return 0; }
 
     // True when Blink runs on low end devices.
     virtual bool isLowEndDeviceMode() { return false; }
 
     // Return the number of of processors of the current machine.
     virtual size_t numberOfProcessors() { return 0; }
 
-    // Returns private and shared usage, in bytes. Private bytes is the amount of
-    // memory currently allocated to this process that cannot be shared. Returns
-    // false on platform specific error conditions.
-    virtual bool processMemorySizesInBytes(size_t* privateBytes, size_t* sharedBytes) { return false; }
-
-    // Reports number of bytes used by memory allocator for internal needs.
-    // Returns true if the size has been reported, or false otherwise.
-    virtual bool memoryAllocatorWasteInBytes(size_t*) { return false; }
-
     // Allocates discardable memory. May return nullptr, even if the platform supports
     // discardable memory. If nonzero, however, then the WebDiscardableMmeory is
     // returned in an locked state. You may use its underlying data() member
     // directly, taking care to unlock it when you are ready to let it become
     // discardable.
     virtual WebDiscardableMemory* allocateAndLockDiscardableMemory(size_t bytes) { return nullptr; }
 
     static const size_t noDecodedImageByteLimit = static_cast<size_t>(-1);
 
     // Returns the maximum amount of memory a decoded image should be allowed.
@@ skipping 439 matching lines @@
 protected:
     BLINK_PLATFORM_EXPORT Platform();
     virtual ~Platform() { }
 
     WebThread* m_mainThread;
 };
 
 } // namespace blink
 
 #endif