pull constant out of trace_event_impl for split_link

base/debug/trace_event_impl.cc

 // 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.
 
 #include "base/debug/trace_event_impl.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/debug/leak_annotations.h"
@@ skipping 1305 matching lines @@
     // Don't allow empty tokens, nor tokens with leading or trailing space.
     DCHECK(!CategoryFilter::IsEmptyOrContainsLeadingOrTrailingWhitespace(
         category_group_token))
         << "Disallowed category string";
     if (MatchPattern(category_group_token.c_str(), category))
       return true;
   }
   return false;
 }
 
-// Enable everything but debug and test categories by default.
-const char* CategoryFilter::kDefaultCategoryFilterString = "-*Debug,-*Test";
-
 CategoryFilter::CategoryFilter(const std::string& filter_string) {
   if (!filter_string.empty())
     Initialize(filter_string);
   else
     Initialize(CategoryFilter::kDefaultCategoryFilterString);
 }
 
 CategoryFilter::CategoryFilter(const CategoryFilter& cf)
     : included_(cf.included_),
       disabled_(cf.disabled_),
@@ skipping 163 matching lines @@
         NULL,                    // arg_names
         NULL,                    // arg_types
         NULL,                    // arg_values
         NULL,                    // convertable values
         TRACE_EVENT_FLAG_NONE);  // flags
   }
 }
 
 }  // namespace trace_event_internal