Reland of Move tracing namespace from base::debug to base::trace_event.

base/trace_event/trace_event_win_unittest.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/trace_event/trace_event.h"
 
 #include <strstream>
 
 #include "base/at_exit.h"
 #include "base/basictypes.h"
 #include "base/files/file_util.h"
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_win.h"
 #include "base/win/event_trace_consumer.h"
 #include "base/win/event_trace_controller.h"
 #include "base/win/event_trace_provider.h"
 #include "base/win/windows_version.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include <initguid.h>  // NOLINT - must be last include.
 
 namespace base {
-namespace debug {
+namespace trace_event {
 
 namespace {
 
 using testing::_;
 using testing::AnyNumber;
 using testing::InSequence;
 using testing::Ge;
 using testing::Le;
 using testing::NotNull;
 
@@ skipping 274 matching lines @@
   TRACE_EVENT_INSTANT_ETW(kName, kId, kExtra);
   ExpectEvent(kTraceEventClass32,
               kTraceEventTypeInstant,
               kName, strlen(kName),
               kId,
               kExtra, strlen(kExtra));
 
   PlayLog();
 }
 
-}  // namespace debug
+}  // namespace trace_event
 }  // namespace base