[NOT TO COMMIT!] r109: Diff of the current tcmalloc from the original google-perftools r109.

third_party/tcmalloc/chromium/src/base/vdso_support.cc

Index: third_party/tcmalloc/chromium/src/base/vdso_support.cc
diff --git a/third_party/tcmalloc/chromium/src/base/vdso_support.cc b/third_party/tcmalloc/chromium/src/base/vdso_support.cc
index 09288a5319c4bb2bc0015f7cf8510d0956ddfdc5..444be26aa56f0f683ff641f1cc8f8c239b0d20a0 100644
--- a/third_party/tcmalloc/chromium/src/base/vdso_support.cc
+++ b/third_party/tcmalloc/chromium/src/base/vdso_support.cc
@@ -40,11 +40,11 @@
 #ifdef HAVE_VDSO_SUPPORT     // defined in vdso_support.h
 
 #include <fcntl.h>
-#include <stddef.h>   // for ptrdiff_t
+#include <stddef.h>   // for std::ptrdiff_t
 
 #include "base/atomicops.h"  // for MemoryBarrier
-#include "base/linux_syscall_support.h"
 #include "base/logging.h"
+#include "base/linux_syscall_support.h"
 #include "base/dynamic_annotations.h"
 #include "base/basictypes.h"  // for COMPILE_ASSERT
 
@@ -266,7 +266,7 @@ void VDSOSupport::ElfMemImage::Init(const void *base) {
     Init(0);
     return;
   }
-  ptrdiff_t relocation =
+  std::ptrdiff_t relocation =
       base_as_char - reinterpret_cast<const char *>(link_base_);
   ElfW(Dyn) *dynamic_entry =
       reinterpret_cast<ElfW(Dyn) *>(dynamic_program_header->p_vaddr +