WIP: The tracing service prototype

components/tracing/child/child_trace_message_filter.h

Index: components/tracing/child/child_trace_message_filter.h
diff --git a/components/tracing/child/child_trace_message_filter.h b/components/tracing/child/child_trace_message_filter.h
index 929fa7e21cdb0c4889fb609e1ad814514c261c66..79a51fa07fca0e08827427f71562782de108c834 100644
--- a/components/tracing/child/child_trace_message_filter.h
+++ b/components/tracing/child/child_trace_message_filter.h
@@ -43,16 +43,6 @@ class TRACING_EXPORT ChildTraceMessageFilter : public IPC::MessageFilter {
   friend class ChildTraceMessageFilterTest;
 
   // Message handlers.
-  void OnBeginTracing(const std::string& trace_config_str,
-                      base::TimeTicks browser_time,
-                      uint64_t tracing_process_id);
-  void OnEndTracing();
-  void OnCancelTracing();
-  void OnGetTraceLogStatus();
-  void OnSetWatchEvent(const std::string& category_name,
-                       const std::string& event_name);
-  void OnCancelWatchEvent();
-  void OnWatchEventMatched();
   void OnSetUMACallback(const std::string& histogram_name,
                         int histogram_lower_value,
                         int histogram_upper_value,
@@ -66,15 +56,8 @@ class TRACING_EXPORT ChildTraceMessageFilter : public IPC::MessageFilter {
   void SendTriggerMessage(const std::string& histogram_name);
   void SendAbortBackgroundTracingMessage();
 
-  // Callback from trace subsystem.
-  void OnTraceDataCollected(
-      const scoped_refptr<base::RefCountedString>& events_str_ptr,
-      bool has_more_events);
-
   void SetSenderForTesting(IPC::Sender* sender);
 
-  uint8_t enabled_tracing_modes_;
-
   IPC::Sender* sender_;
   base::SingleThreadTaskRunner* ipc_task_runner_;