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diff --git a/JavaScriptCore/wtf/PageAllocation.h b/JavaScriptCore/wtf/PageAllocation.h
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--- a/JavaScriptCore/wtf/PageAllocation.h
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * Copyright (C) 2010 Apple 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:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
- */
-
-#ifndef PageAllocation_h
-#define PageAllocation_h
-
-#include <wtf/Assertions.h>
-#include <wtf/OSAllocator.h>
-#include <wtf/PageBlock.h>
-#include <wtf/UnusedParam.h>
-#include <wtf/VMTags.h>
-#include <algorithm>
-
-#if OS(DARWIN)
-#include <mach/mach_init.h>
-#include <mach/vm_map.h>
-#endif
-
-#if OS(HAIKU)
-#include <OS.h>
-#endif
-
-#if OS(WINDOWS)
-#include <malloc.h>
-#include <windows.h>
-#endif
-
-#if OS(SYMBIAN)
-#include <e32hal.h>
-#include <e32std.h>
-#endif
-
-#if HAVE(ERRNO_H)
-#include <errno.h>
-#endif
-
-#if HAVE(MMAP)
-#include <sys/mman.h>
-#include <unistd.h>
-#endif
-
-namespace WTF {
-
-/*
-    PageAllocation
-
-    The PageAllocation class provides a cross-platform memory allocation interface
-    with similar capabilities to posix mmap/munmap.  Memory is allocated by calling
-    PageAllocation::allocate, and deallocated by calling deallocate on the
-    PageAllocation object.  The PageAllocation holds the allocation's base pointer
-    and size.
-
-    The allocate method is passed the size required (which must be a multiple of
-    the system page size, which can be accessed using PageAllocation::pageSize).
-    Callers may also optinally provide a flag indicating the usage (for use by
-    system memory usage tracking tools, where implemented), and boolean values
-    specifying the required protection (defaulting to writable, non-executable).
-*/
-
-class PageAllocation : private PageBlock {
-public:
-    PageAllocation()
-    {
-    }
-
-    using PageBlock::operator bool;
-    using PageBlock::size;
-    using PageBlock::base;
-
-    static PageAllocation allocate(size_t size, OSAllocator::Usage usage = OSAllocator::UnknownUsage, bool writable = true, bool executable = false)
-    {
-        ASSERT(isPageAligned(size));
-        return PageAllocation(OSAllocator::reserveAndCommit(size, usage, writable, executable), size);
-    }
-
-    void deallocate()
-    {
-        // Clear base & size before calling release; if this is *inside* allocation
-        // then we won't be able to clear then after deallocating the memory.
-        PageAllocation tmp;
-        std::swap(tmp, *this);
-
-        ASSERT(tmp);
-        ASSERT(!*this);
-
-        OSAllocator::decommitAndRelease(tmp.base(), tmp.size());
-    }
-
-private:
-    PageAllocation(void* base, size_t size)
-        : PageBlock(base, size)
-    {
-    }
-};
-
-} // namespace WTF
-
-using WTF::PageAllocation;
-
-#endif // PageAllocation_h