Re-land r93365 - add RefCountedString

base/debug/trace_event.h

 // Copyright (c) 2011 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.
 
 // Trace events are for tracking application performance.
 //
 // Events are issued against categories. Whereas LOG's
 // categories are statically defined, TRACE categories are created
 // implicitly with a string. For example:
 //   TRACE_EVENT_INSTANT0("MY_SUBSYSTEM", "SomeImportantEvent")
@@ skipping 260 matching lines @@
     int INTERNAL_TRACE_EVENT_UID(begin_event_id) = \
       base::debug::TraceLog::GetInstance()->AddTraceEvent( \
           base::debug::TRACE_EVENT_PHASE_BEGIN, \
           INTERNAL_TRACE_EVENT_UID(catstatic), \
           name, arg1_name, arg1_val, arg2_name, arg2_val, -1, 0, false); \
     INTERNAL_TRACE_EVENT_UID(profileScope).Initialize( \
         INTERNAL_TRACE_EVENT_UID(catstatic), name, \
         INTERNAL_TRACE_EVENT_UID(begin_event_id), threshold); \
   }
 
-class RefCountedBytes;
+namespace base {
 
-namespace base {
+class RefCountedString;
 
 namespace debug {
 
 // Categories allow enabling/disabling of streams of trace events
 struct TraceCategory {
   const char* name;
   volatile bool enabled;
 };
 
 const size_t kTraceMaxNumArgs = 2;
@@ skipping 137 matching lines @@
 
  private:
   unsigned long process_id_;
   unsigned long thread_id_;
   TimeTicks timestamp_;
   TraceEventPhase phase_;
   const TraceCategory* category_;
   const char* name_;
   const char* arg_names_[kTraceMaxNumArgs];
   TraceValue arg_values_[kTraceMaxNumArgs];
-  scoped_refptr<RefCountedBytes> parameter_copy_storage_;
+  scoped_refptr<base::RefCountedString> parameter_copy_storage_;
 };
 
 
 class BASE_API TraceLog {
  public:
   static TraceLog* GetInstance();
 
   // Global enable of tracing. Currently enables all categories or not.
   // TODO(scheib): Replace with an Enable/DisableCategory() that
   // implicitly controls the global logging state.
@@ skipping 137 matching lines @@
   Data* p_data_;
   Data data_;
 };
 
 }  // namespace internal
 
 }  // namespace debug
 }  // namespace base
 
 #endif  // BASE_DEBUG_TRACE_EVENT_H_