Rename tracing interfaces.

services/debugger/debugger.cc

 // Copyright 2014 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 <algorithm>
 
 #include "base/bind.h"
 #include "base/debug/profiler.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
@@ skipping 185 matching lines @@
       Error(callback, "Profiling not started");
       return;
     }
     base::debug::StopProfiling();
     Respond(callback, "Stopped profiling");
   }
 
   bool is_tracing_;
   mojo::ApplicationImpl* app_;
   mojo::WindowManagerPtr window_manager_;
-  tracing::TraceCoordinatorPtr tracing_;
+  tracing::TraceCollectorPtr tracing_;
   std::string url_;
   uint32_t command_port_;
 
   http_server::HttpServerPtr http_server_;
   mojo::Binding<http_server::HttpHandler> handler_binding_;
 
   scoped_ptr<TraceCollector> trace_collector_;
 
   DISALLOW_COPY_AND_ASSIGN(Debugger);
 };
 
 }  // namespace debugger
 
 MojoResult MojoMain(MojoHandle application_request) {
   mojo::ApplicationRunnerChromium runner(new debugger::Debugger);
   runner.set_message_loop_type(base::MessageLoop::TYPE_IO);
   return runner.Run(application_request);
 }