Use std:: on symbols declared in C++-style C headers.

src/platform/mutex.cc

 // Copyright 2013 the V8 project authors. All rights reserved.
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 // 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.
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 //       copyright notice, this list of conditions and the following
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 //       from this software without specific prior written permission.
 //
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 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 #include "platform/mutex.h"
 
-#include <cerrno>
+#include <errno.h>
 
 namespace v8 {
 namespace internal {
 
 #if V8_OS_POSIX
 
 static V8_INLINE void InitializeNativeHandle(pthread_mutex_t* mutex) {
   int result;
 #if defined(DEBUG)
   // Use an error checking mutex in debug mode.
@@ skipping 164 matching lines @@
     return false;
   }
 #ifdef DEBUG
   ASSERT_LE(0, level_);
   level_++;
 #endif
   return true;
 }
 
 } }  // namespace v8::internal