Merge google-perftools r109 (the current contents of third_party/tcmalloc/vendor)

third_party/tcmalloc/chromium/src/google/profiler.h

Index: third_party/tcmalloc/chromium/src/google/profiler.h
===================================================================
--- third_party/tcmalloc/chromium/src/google/profiler.h	(revision 88335)
+++ third_party/tcmalloc/chromium/src/google/profiler.h	(working copy)
@@ -155,7 +155,7 @@
   int    enabled;             /* Is profiling currently enabled? */
   time_t start_time;          /* If enabled, when was profiling started? */
   char   profile_name[1024];  /* Name of profile file being written, or '\0' */
-  int    samples_gathered;    /* Number of samples gatheered to far (or 0) */
+  int    samples_gathered;    /* Number of samples gathered so far (or 0) */
 };
 PERFTOOLS_DLL_DECL void ProfilerGetCurrentState(struct ProfilerState* state);