Merge tcmalloc r111 (perftools v. 1.8) with the chromium/ branch.

third_party/tcmalloc/chromium/src/windows/port.cc

Index: third_party/tcmalloc/chromium/src/windows/port.cc
===================================================================
--- third_party/tcmalloc/chromium/src/windows/port.cc	(revision 94429)
+++ third_party/tcmalloc/chromium/src/windows/port.cc	(working copy)
@@ -218,10 +218,6 @@
 // -----------------------------------------------------------------------
 // These functions replace system-alloc.cc
 
-// The current system allocator. Because we don't link with system-alloc.cc,
-// we need to define our own.
-SysAllocator* sys_alloc = NULL;
-
 // This is mostly like MmapSysAllocator::Alloc, except it does these weird
 // munmap's in the middle of the page, which is forbidden in windows.
 extern void* TCMalloc_SystemAlloc(size_t size, size_t *actual_size,
@@ -312,7 +308,10 @@
   // We don't dump stats on windows, right now
 }
 
+// The current system allocator
+SysAllocator* sys_alloc = NULL;
 
+
 // -----------------------------------------------------------------------
 // These functions rework existing functions of the same name in the
 // Google codebase.