NOCOMMIT: Blink tracing now uses base

base/location.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.
 
 #ifndef BASE_LOCATION_H_
 #define BASE_LOCATION_H_
 
 #include <cassert>
 #include <string>
 
@@ skipping 82 matching lines @@
   ~LocationSnapshot();
 
   std::string file_name;
   std::string function_name;
   int line_number;
 };
 
 BASE_EXPORT const void* GetProgramCounter();
 
 // Define a macro to record the current source location.
+#if !INSIDE_BLINK
 #define FROM_HERE FROM_HERE_WITH_EXPLICIT_FUNCTION(__FUNCTION__)
+#endif // INSIDE_BLINK
 
 #define FROM_HERE_WITH_EXPLICIT_FUNCTION(function_name)                        \
     ::tracked_objects::Location(function_name,                                 \
                                 __FILE__,                                      \
                                 __LINE__,                                      \
                                 ::tracked_objects::GetProgramCounter())
 
 }  // namespace tracked_objects
 
 #endif  // BASE_LOCATION_H_