Linux: Do not use a hard coded app name for PulseAudio output.

media/audio/pulse/pulse_util.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 "media/audio/pulse/pulse_util.h"
 
 #include "base/logging.h"
 #include "base/time/time.h"
 #include "media/audio/audio_manager_base.h"
 #include "media/audio/audio_parameters.h"
@@ skipping 216 matching lines @@
   }
 
   return true;
 }
 
 bool CreateOutputStream(pa_threaded_mainloop** mainloop,
                         pa_context** context,
                         pa_stream** stream,
                         const AudioParameters& params,
                         const std::string& device_id,
+                        const std::string& app_name,
                         pa_stream_notify_cb_t stream_callback,
                         pa_stream_request_cb_t write_callback,
                         void* user_data) {
   DCHECK(!*mainloop);
   DCHECK(!*context);
 
   *mainloop = pa_threaded_mainloop_new();
   RETURN_ON_FAILURE(*mainloop, "Failed to create PulseAudio main loop.");
 
   pa_mainloop_api* pa_mainloop_api = pa_threaded_mainloop_get_api(*mainloop);
-  *context = pa_context_new(pa_mainloop_api, "Chromium");
+  *context = pa_context_new(pa_mainloop_api,
+                            app_name.empty() ? "Chromium" : app_name.c_str());
   RETURN_ON_FAILURE(*context, "Failed to create PulseAudio context.");
 
   // A state callback must be set before calling pa_threaded_mainloop_lock() or
   // pa_threaded_mainloop_wait() calls may lead to dead lock.
   pa_context_set_state_callback(*context, &ContextStateCallback, *mainloop);
 
   // Lock the main loop while setting up the context.  Failure to do so may lead
   // to crashes as the PulseAudio thread tries to run before things are ready.
   AutoPulseLock auto_lock(*mainloop);
 
@@ skipping 92 matching lines @@
   }
 
   return true;
 }
 
 #undef RETURN_ON_FAILURE
 
 }  // namespace pulse
 
 }  // namespace media