Revert 108752 - Support tracking of IPC messages as tasks in profiler

base/profiler/scoped_profile.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/profiler/scoped_profile.h"
-
-#include "base/location.h"
-#include "base/tracked_objects.h"
-
-
-namespace tracked_objects {
-
-
-ScopedProfile::ScopedProfile(const Location& location)
-    : birth_(ThreadData::TallyABirthIfActive(location)),
-      start_of_run_(ThreadData::Now()) {
-}
-
-ScopedProfile::~ScopedProfile() {
-  StopClockAndTally();
-}
-
-void ScopedProfile::StopClockAndTally() {
-  if (!birth_)
-    return;
-  ThreadData::TallyRunInAScopedRegionIfTracking(birth_, start_of_run_,
-                                                ThreadData::Now());
-  birth_ = NULL;
-}
-
-}  // namespace tracked_objects