Revert 133773 - [UMA] Add performance profile data to UMA uploads.

base/profiler/alternate_timer.cc

 // Copyright (c) 2012 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/alternate_timer.h"
 
 #include "base/logging.h"
 
-namespace {
+namespace tracked_objects {
 
-tracked_objects::NowFunction* g_time_function = NULL;
-
-}  // anonymous namespace
-
-namespace tracked_objects {
+static NowFunction* g_time_function = NULL;
 
 const char kAlternateProfilerTime[] = "CHROME_PROFILER_TIME";
 
 // Set an alternate timer function to replace the OS time function when
 // profiling.
 void SetAlternateTimeSource(NowFunction* now_function) {
-  DCHECK_EQ(reinterpret_cast<NowFunction*>(NULL), g_time_function);
+  DCHECK_EQ(g_time_function, reinterpret_cast<NowFunction*>(NULL));
   g_time_function = now_function;
 }
 
-NowFunction* GetAlternateTimeSource() {
+extern NowFunction* GetAlternateTimeSource() {
   return g_time_function;
 }
-
-}  // namespace tracked_objects
+}  // tracked_objects