Avoid log spam in AudioSyncReader.

content/browser/renderer_host/media/audio_sync_reader.cc

Index: content/browser/renderer_host/media/audio_sync_reader.cc
diff --git a/content/browser/renderer_host/media/audio_sync_reader.cc b/content/browser/renderer_host/media/audio_sync_reader.cc
index be6afd9c52278e59d6977244823a22764c9ac066..65eea8c9b60301850297891360381420ba457873 100644
--- a/content/browser/renderer_host/media/audio_sync_reader.cc
+++ b/content/browser/renderer_host/media/audio_sync_reader.cc
@@ -53,6 +53,7 @@ AudioSyncReader::AudioSyncReader(
     : shared_memory_(std::move(shared_memory)),
       mute_audio_(base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kMuteAudio)),
+      had_socket_error_(false),
       socket_(std::move(socket)),
       foreign_socket_(std::move(foreign_socket)),
       packet_size_(shared_memory_->requested_size()),
@@ -175,9 +176,10 @@ void AudioSyncReader::RequestMoreData(base::TimeDelta delay,
   }
 
   size_t sent_bytes = socket_->Send(&control_signal, sizeof(control_signal));
-  if (sent_bytes != sizeof(control_signal)) {
+  if (sent_bytes != sizeof(control_signal) && !had_socket_error_) {
+    had_socket_error_ = true;

[tommi (sloooow) - chröme, 2017/04/18 09:39:28]

same here

[Max Morin, 2017/04/19 11:51:01]

Done.

     const std::string error_message = "ASR: No room in socket buffer.";
-    LOG(WARNING) << error_message;
+    PLOG(WARNING) << error_message;
     MediaStreamManager::SendMessageToNativeLog(error_message);
     TRACE_EVENT_INSTANT0("audio",
                          "AudioSyncReader: No room in socket buffer",