replace 'virtual ... OVERRIDE' with '... override'

base/debug/trace_event_memory.h

 // Copyright 2013 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.
 
 #ifndef BASE_DEBUG_TRACE_EVENT_MEMORY_H_
 #define BASE_DEBUG_TRACE_EVENT_MEMORY_H_
 
 #include "base/base_export.h"
 #include "base/debug/trace_event_impl.h"
 #include "base/gtest_prod_util.h"
@@ skipping 29 matching lines @@
   // pointers to tcmalloc heap profiling functions; by avoiding direct calls to
   // these functions we avoid a dependency on third_party/tcmalloc from base.
   TraceMemoryController(
       scoped_refptr<MessageLoopProxy> message_loop_proxy,
       HeapProfilerStartFunction heap_profiler_start_function,
       HeapProfilerStopFunction heap_profiler_stop_function,
       GetHeapProfileFunction get_heap_profile_function);
   virtual ~TraceMemoryController();
 
   // base::debug::TraceLog::EnabledStateChangedObserver overrides:
-  virtual void OnTraceLogEnabled() OVERRIDE;
-  virtual void OnTraceLogDisabled() OVERRIDE;
+  void OnTraceLogEnabled() override;
+  void OnTraceLogDisabled() override;
 
   // Starts heap memory profiling.
   void StartProfiling();
 
   // Captures a heap profile.
   void DumpMemoryProfile();
 
   // If memory tracing is enabled, dumps a memory profile to the tracing system.
   void StopProfiling();
 
@@ skipping 101 matching lines @@
 #else
 #define INTERNAL_TRACE_MEMORY(category, name)
 #endif  // defined(TRACE_MEMORY_SUPPORTED)
 
 // A special trace name that allows us to ignore memory allocations inside
 // the memory dump system itself. The allocations are recorded, but the
 // visualizer skips them. Must match the value in heap.js.
 #define TRACE_MEMORY_IGNORE "trace-memory-ignore"
 
 #endif  // BASE_DEBUG_TRACE_EVENT_MEMORY_H_