Remove LooperExecutor and replace it with built-in HandlerThread.

webrtc/examples/androidapp/src/org/appspot/apprtc/util/LooperExecutor.java

Index: webrtc/examples/androidapp/src/org/appspot/apprtc/util/LooperExecutor.java
diff --git a/webrtc/examples/androidapp/src/org/appspot/apprtc/util/LooperExecutor.java b/webrtc/examples/androidapp/src/org/appspot/apprtc/util/LooperExecutor.java
deleted file mode 100644
index 4db807a3a6eef9bf7cfff6481d1c1a6b5a5c15f0..0000000000000000000000000000000000000000
--- a/webrtc/examples/androidapp/src/org/appspot/apprtc/util/LooperExecutor.java
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- *  Copyright 2015 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-package org.appspot.apprtc.util;
-
-import android.os.Handler;
-import android.os.Looper;
-import android.util.Log;
-
-import java.util.LinkedList;
-import java.util.List;
-import java.util.concurrent.Executor;
-
-/**
- * Looper based executor class. This is needed because WebSocketClient from autobanh requires the
- * thread to have a looper. The class is used in WebSocketRTCClient/WebSocketChannelClient.
- */
-public class LooperExecutor extends Thread implements Executor {
-  private static final String TAG = "LooperExecutor";
-  // Object used to signal that looper thread has started and Handler instance
-  // associated with looper thread has been allocated.
-  private final Object looperStartedEvent = new Object();
-  private final List<Runnable> scheduledPeriodicRunnables = new LinkedList<Runnable>();
-  private Handler handler = null;
-  private boolean running = false;
-  private long threadId;
-
-  @Override
-  public void run() {
-    Looper.prepare();
-    synchronized (looperStartedEvent) {
-      Log.d(TAG, "Looper thread started.");
-      handler = new Handler();
-      threadId = Thread.currentThread().getId();
-      looperStartedEvent.notify();
-    }
-    Looper.loop();
-  }
-
-  public synchronized void requestStart() {
-    if (running) {
-      return;
-    }
-    running = true;
-    handler = null;
-    start();
-    // Wait for Hander allocation.
-    synchronized (looperStartedEvent) {
-      while (handler == null) {
-        try {
-          looperStartedEvent.wait();
-        } catch (InterruptedException e) {
-          Log.e(TAG, "Can not start looper thread");
-          running = false;
-        }
-      }
-    }
-  }
-
-  public synchronized void requestStop() {
-    if (!running) {
-      return;
-    }
-    running = false;
-    handler.post(new Runnable() {
-      @Override
-      public void run() {
-        handler.getLooper().quit();
-        Log.d(TAG, "Looper thread finished.");
-      }
-    });
-  }
-
-  // Checks if current thread is a looper thread.
-  public boolean checkOnLooperThread() {
-    return (Thread.currentThread().getId() == threadId);
-  }
-
-  public synchronized void scheduleAtFixedRate(final Runnable command, final long periodMillis) {
-    if (!running) {
-      Log.w(TAG, "Trying to schedule task for non running executor");
-      return;
-    }
-    Runnable runnable = new Runnable() {
-      @Override
-      public void run() {
-        if (running) {
-          command.run();
-          if (!handler.postDelayed(this, periodMillis)) {
-            Log.e(TAG, "Failed to post a delayed runnable in the chain.");
-          }
-        }
-      }
-    };
-    scheduledPeriodicRunnables.add(runnable);
-    if (!handler.postDelayed(runnable, periodMillis)) {
-      Log.e(TAG, "Failed to post a delayed runnable.");
-    }
-  }
-
-  public synchronized void cancelScheduledTasks() {
-    if (!running) {
-      Log.w(TAG, "Trying to cancel schedule tasks for non running executor");
-      return;
-    }
-
-    // Stop scheduled periodic tasks.
-    for (Runnable r : scheduledPeriodicRunnables) {
-      handler.removeCallbacks(r);
-    }
-    scheduledPeriodicRunnables.clear();
-  }
-
-  @Override
-  public synchronized void execute(final Runnable runnable) {
-    if (!running) {
-      Log.w(TAG, "Running looper executor without calling requestStart()");
-      return;
-    }
-    if (Thread.currentThread().getId() == threadId) {
-      runnable.run();
-    } else {
-      handler.post(runnable);
-    }
-  }
-
-  /**
-   * Access to the handler for testing purposes.
-   */
-  Handler getHandler() {
-    return handler;
-  }
-}