Move Singleton and related structs to namespace base

base/trace_event/trace_log.cc

 // Copyright 2015 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_log.h"
 
 #include <algorithm>
 #include <cmath>
 
 #include "base/base_switches.h"
@@ skipping 21 matching lines @@
 #include "base/trace_event/trace_event.h"
 #include "base/trace_event/trace_event_synthetic_delay.h"
 #include "base/trace_event/trace_log.h"
 #include "base/trace_event/trace_sampling_thread.h"
 
 #if defined(OS_WIN)
 #include "base/trace_event/trace_event_etw_export_win.h"
 #include "base/trace_event/trace_event_win.h"
 #endif
 
-class DeleteTraceLogForTesting {
- public:
-  static void Delete() {
-    Singleton<base::trace_event::TraceLog,
-              LeakySingletonTraits<base::trace_event::TraceLog>>::OnExit(0);
-  }
-};
-
 // The thread buckets for the sampling profiler.
 BASE_EXPORT TRACE_EVENT_API_ATOMIC_WORD g_trace_state[3];
 
 namespace base {
+namespace internal {
+
+class DeleteTraceLogForTesting {
+ public:
+  static void Delete() {
+    Singleton<trace_event::TraceLog,
+              LeakySingletonTraits<trace_event::TraceLog>>::OnExit(0);
+  }
+};
+
+}  // namespace internal
+
 namespace trace_event {
 
 namespace {
 
 // Controls the number of trace events we will buffer in-memory
 // before throwing them away.
 const size_t kTraceBufferChunkSize = TraceBufferChunk::kTraceBufferChunkSize;
 
 const size_t kTraceEventVectorBigBufferChunks =
     512000000 / kTraceBufferChunkSize;
@@ skipping 1524 matching lines @@
   }
 }
 
 void TraceLog::WaitSamplingEventForTesting() {
   if (!sampling_thread_)
     return;
   sampling_thread_->WaitSamplingEventForTesting();
 }
 
 void TraceLog::DeleteForTesting() {
-  DeleteTraceLogForTesting::Delete();
+  internal::DeleteTraceLogForTesting::Delete();
 }
 
 TraceEvent* TraceLog::GetEventByHandle(TraceEventHandle handle) {
   return GetEventByHandleInternal(handle, NULL);
 }
 
 TraceEvent* TraceLog::GetEventByHandleInternal(TraceEventHandle handle,
                                                OptionalAutoLock* lock) {
   if (!handle.chunk_seq)
     return NULL;
@@ skipping 156 matching lines @@
 }
 
 ScopedTraceBinaryEfficient::~ScopedTraceBinaryEfficient() {
   if (*category_group_enabled_) {
     TRACE_EVENT_API_UPDATE_TRACE_EVENT_DURATION(category_group_enabled_, name_,
                                                 event_handle_);
   }
 }
 
 }  // namespace trace_event_internal