[tracing] Fix MemoryDumpManager to support startup tracing

content/browser/tracing/tracing_controller_impl.h

 // Copyright (c) 2013 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 CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_
 #define CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 41 matching lines @@
   bool CancelWatchEvent() override;
   bool IsRecording() const override;
 
   void RegisterTracingUI(TracingUI* tracing_ui);
   void UnregisterTracingUI(TracingUI* tracing_ui);
 
   // base::trace_event::MemoryDumpManagerDelegate implementation.
   void RequestGlobalMemoryDump(
       const base::trace_event::MemoryDumpRequestArgs& args,
       const base::trace_event::MemoryDumpCallback& callback) override;
-  bool IsCoordinatorProcess() const override;
   uint64 GetTracingProcessId() const override;
 
   class TraceMessageFilterObserver {
    public:
     virtual void OnTraceMessageFilterAdded(TraceMessageFilter* filter) = 0;
     virtual void OnTraceMessageFilterRemoved(TraceMessageFilter* filter) = 0;
   };
   void AddTraceMessageFilterObserver(TraceMessageFilterObserver* observer);
   void RemoveTraceMessageFilterObserver(TraceMessageFilterObserver* observer);
 
@@ skipping 135 matching lines @@
   std::set<TracingUI*> tracing_uis_;
   scoped_refptr<TraceDataSink> trace_data_sink_;
   scoped_refptr<TraceDataSink> monitoring_data_sink_;
 
   DISALLOW_COPY_AND_ASSIGN(TracingControllerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_TRACING_TRACING_CONTROLLER_IMPL_H_