Remove unused TypingMonitor class.

talk/session/media/typingmonitor.cc

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
  *     this list of conditions and the following disclaimer in the documentation
  *     and/or other materials provided with the distribution.
  *  3. The name of the author may not be used to endorse or promote products
  *     derived from this software without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
  * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
  * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+ // TODO(solenberg): Remove this file when it's no longer built in Chromium.
+
 #include "talk/session/media/typingmonitor.h"
-
-#include "talk/session/media/channel.h"
-#include "webrtc/base/logging.h"
-#include "webrtc/base/thread.h"
-
-namespace cricket {
-
-TypingMonitor::TypingMonitor(VoiceChannel* channel,
-                             rtc::Thread* worker_thread,
-                             const TypingMonitorOptions& settings)
-    : channel_(channel),
-      worker_thread_(worker_thread),
-      mute_period_(settings.mute_period),
-      muted_at_(0),
-      has_pending_unmute_(false) {
-  channel_->media_channel()->SignalMediaError.connect(
-      this, &TypingMonitor::OnVoiceChannelError);
-  channel_->media_channel()->SetTypingDetectionParameters(
-      settings.time_window, settings.cost_per_typing,
-      settings.reporting_threshold, settings.penalty_decay,
-      settings.type_event_delay);
-}
-
-TypingMonitor::~TypingMonitor() {
-  // Shortcut any pending unmutes.
-  if (has_pending_unmute_) {
-    rtc::MessageList messages;
-    worker_thread_->Clear(this, 0, &messages);
-    ASSERT(messages.size() == 1);
-    channel_->MuteStream(0, false);
-    SignalMuted(channel_, false);
-  }
-}
-
-void TypingMonitor::OnVoiceChannelError(uint32 ssrc,
-                                        VoiceMediaChannel::Error error) {
-  if (error == VoiceMediaChannel::ERROR_REC_TYPING_NOISE_DETECTED &&
-      !channel_->IsStreamMuted(0)) {
-    // Please be careful and cognizant about threading issues when editing this
-    // code.  The MuteStream() call below is a ::Send and is synchronous as well
-    // as the muted signal that comes from this.  This function can be called
-    // from any thread.
-
-    // TODO(perkj): Refactor TypingMonitor and the MediaChannel to handle
-    // multiple sending audio streams. SSRC 0 means the default sending audio
-    // channel.
-    channel_->MuteStream(0, true);
-    SignalMuted(channel_, true);
-    has_pending_unmute_ = true;
-    muted_at_ = rtc::Time();
-
-    worker_thread_->PostDelayed(mute_period_, this, 0);
-    LOG(LS_INFO) << "Muting for at least " << mute_period_ << "ms.";
-  }
-}
-
-/**
- * If we mute due to detected typing and the user also mutes during our waiting
- * period, we don't want to undo their mute.  So, clear our callback.  Should
- * be called on the worker_thread.
- */
-void TypingMonitor::OnChannelMuted() {
-  if (has_pending_unmute_) {
-    rtc::MessageList removed;
-    worker_thread_->Clear(this, 0, &removed);
-    ASSERT(removed.size() == 1);
-    has_pending_unmute_ = false;
-  }
-}
-
-/**
- * When the specified mute period has elapsed, unmute, or, if the user kept
- * typing after the initial warning fired, wait for the remainder of time to
- * elapse since they finished and try to unmute again.  Should be called on the
- * worker thread.
- */
-void TypingMonitor::OnMessage(rtc::Message* msg) {
-  if (!channel_->IsStreamMuted(0) || !has_pending_unmute_) return;
-  int silence_period = channel_->media_channel()->GetTimeSinceLastTyping();
-  int expiry_time = mute_period_ - silence_period;
-  if (silence_period < 0 || expiry_time < 50) {
-    LOG(LS_INFO) << "Mute timeout hit, last typing " << silence_period
-                 << "ms ago, unmuting after " << rtc::TimeSince(muted_at_)
-                 << "ms total.";
-    has_pending_unmute_ = false;
-    channel_->MuteStream(0, false);
-    SignalMuted(channel_, false);
-  } else {
-    LOG(LS_INFO) << "Mute timeout hit, last typing " << silence_period
-                 << "ms ago, check again in " << expiry_time << "ms.";
-    rtc::Thread::Current()->PostDelayed(expiry_time, this, 0);
-  }
-}
-
-}  // namespace cricket