Add missing closing namespace comments to wtf.

third_party/WebKit/Source/wtf/AddressSpaceRandomization.cpp

 // 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 "wtf/AddressSpaceRandomization.h"
 
 #include "wtf/PageAllocator.h"
 #include "wtf/SpinLock.h"
 
 #if OS(WIN)
@@ skipping 59 matching lines @@
         for (int i = 0; i < 20; ++i) {
             (void) ranvalInternal(x);
         }
     }
     uint32_t ret = ranvalInternal(x);
     return ret;
 }
 
 static struct ranctx s_ranctx;
 
-}
+} // namespace
 
 // Calculates a random preferred mapping address. In calculating an
 // address, we balance good ASLR against not fragmenting the address
 // space too badly.
 void* getRandomPageBase()
 {
     uintptr_t random;
     random = static_cast<uintptr_t>(ranval(&s_ranctx));
 #if CPU(X86_64)
     random <<= 32UL;
@@ skipping 32 matching lines @@
 #endif // OS(WIN)
     // This is a good range on Windows, Linux and Mac.
     // Allocates in the 0.5-1.5GB region.
     random &= 0x3fffffff;
     random += 0x20000000;
 #endif // CPU(X86_64)
     random &= kPageAllocationGranularityBaseMask;
     return reinterpret_cast<void*>(random);
 }
 
-}
+} // namespace WTF