Move webrtc/{base => rtc_base}

webrtc/rtc_base/trace_event.h

 // 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 under third_party_mods/chromium or at:
 // http://src.chromium.org/svn/trunk/src/LICENSE
 
-#ifndef WEBRTC_BASE_TRACE_EVENT_H_
-#define WEBRTC_BASE_TRACE_EVENT_H_
+#ifndef WEBRTC_RTC_BASE_TRACE_EVENT_H_
+#define WEBRTC_RTC_BASE_TRACE_EVENT_H_
 
 #include <string>
 
 #include "webrtc/base/event_tracer.h"
 
 #if defined(TRACE_EVENT0)
 #error "Another copy of trace_event.h has already been included."
 #endif
 
 // Extracted from Chromium's src/base/debug/trace_event.h.
@@ skipping 882 matching lines @@
     const unsigned char* category_enabled;
     const char* name;
   };
   Data* p_data_;
   Data data_;
 };
 
 }  // namespace trace_event_internal
 }  // namespace webrtc
 
-#endif  // WEBRTC_BASE_TRACE_EVENT_H_
+#endif  // WEBRTC_RTC_BASE_TRACE_EVENT_H_