Update the tcmalloc chromium branch to r144 (gperftools 2.0), and merge chromium-specific changes.

third_party/tcmalloc/chromium/src/profiler.cc

 // Copyright (c) 2005, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // 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.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
 #elif defined(HAVE_UCONTEXT_H)
 #include <ucontext.h>
 #elif defined(HAVE_CYGWIN_SIGNAL_H)
 #include <cygwin/signal.h>
 typedef ucontext ucontext_t;
 #else
 typedef int ucontext_t;   // just to quiet the compiler, mostly
 #endif
 #include <sys/time.h>
 #include <string>
-#include <google/profiler.h>
-#include <google/stacktrace.h>
+#include <gperftools/profiler.h>
+#include <gperftools/stacktrace.h>
 #include "base/commandlineflags.h"
 #include "base/logging.h"
 #include "base/googleinit.h"
 #include "base/spinlock.h"
 #include "base/sysinfo.h"             /* for GetUniquePathFromEnv, etc */
 #include "profiledata.h"
 #include "profile-handler.h"
 #ifdef HAVE_CONFLICT_SIGNAL_H
 #include "conflict-signal.h"          /* used on msvc machines */
 #endif
@@ skipping 263 matching lines @@
 extern "C" void ProfilerStop() { }
 extern "C" void ProfilerGetCurrentState(ProfilerState* state) {
   memset(state, 0, sizeof(*state));
 }
 
 #endif  // OS_CYGWIN
 
 // DEPRECATED routines
 extern "C" PERFTOOLS_DLL_DECL void ProfilerEnable() { }
 extern "C" PERFTOOLS_DLL_DECL void ProfilerDisable() { }