base: Add/Fix namespace closing comments.

base/trace_event/memory_dump_manager.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/memory_dump_manager.h"
 
 #include <algorithm>
 
 #include "base/atomic_sequence_num.h"
 #include "base/compiler_specific.h"
@@ skipping 19 matching lines @@
     case DumpPointType::TASK_END:
       return "TASK_END";
     case DumpPointType::PERIODIC_INTERVAL:
       return "PERIODIC_INTERVAL";
     case DumpPointType::EXPLICITLY_TRIGGERED:
       return "EXPLICITLY_TRIGGERED";
   }
   NOTREACHED();
   return "UNKNOWN";
 }
-}
+
+}  // namespace
 
 // TODO(primiano): this should be smarter and should do something similar to
 // trace event synthetic delays.
 const char MemoryDumpManager::kTraceCategory[] =
     TRACE_DISABLED_BY_DEFAULT("memory-dumps");
 
 // static
 MemoryDumpManager* MemoryDumpManager::GetInstance() {
   if (g_instance_for_testing)
     return g_instance_for_testing;
@@ skipping 123 matching lines @@
 }
 
 void MemoryDumpManager::OnTraceLogDisabled() {
   AutoLock lock(lock_);
   dump_providers_enabled_.clear();
   subtle::NoBarrier_Store(&memory_tracing_enabled_, 0);
 }
 
 }  // namespace trace_event
 }  // namespace base