Update CPU Monitor to report CPU frequency and battery level.

webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java

 /*
  *  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.
  */
 
@@ skipping 20 matching lines @@
   private View controlView;
   private TextView encoderStatView;
   private TextView hudViewBwe;
   private TextView hudViewConnection;
   private TextView hudViewVideoSend;
   private TextView hudViewVideoRecv;
   private ImageButton toggleDebugButton;
   private boolean videoCallEnabled;
   private boolean displayHud;
   private volatile boolean isRunning;
-  private final CpuMonitor cpuMonitor = new CpuMonitor();
+  private CpuMonitor cpuMonitor;
 
   @Override
   public View onCreateView(LayoutInflater inflater, ViewGroup container,
       Bundle savedInstanceState) {
     controlView = inflater.inflate(R.layout.fragment_hud, container, false);
 
     // Create UI controls.
     encoderStatView = (TextView) controlView.findViewById(R.id.encoder_stat_call);
     hudViewBwe = (TextView) controlView.findViewById(R.id.hud_stat_bwe);
     hudViewConnection = (TextView) controlView.findViewById(R.id.hud_stat_connection);
@@ skipping 30 matching lines @@
     hudViewsSetProperties(View.INVISIBLE);
     isRunning = true;
   }
 
   @Override
   public void onStop() {
     isRunning = false;
     super.onStop();
   }
 
+  public void setCpuMonitor(CpuMonitor cpuMonitor) {
+    this.cpuMonitor = cpuMonitor;
+  }
+
   private void hudViewsSetProperties(int visibility) {
     hudViewBwe.setVisibility(visibility);
     hudViewConnection.setVisibility(visibility);
     hudViewVideoSend.setVisibility(visibility);
     hudViewVideoRecv.setVisibility(visibility);
     hudViewBwe.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
     hudViewConnection.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
     hudViewVideoSend.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
     hudViewVideoRecv.setTextSize(TypedValue.COMPLEX_UNIT_PT, 5);
   }
@@ skipping 80 matching lines @@
         encoderStat.append("Fps:  ").append(fps).append("\n");
       }
       if (targetBitrate != null) {
         encoderStat.append("Target BR: ").append(targetBitrate).append("\n");
       }
       if (actualBitrate != null) {
         encoderStat.append("Actual BR: ").append(actualBitrate).append("\n");
       }
     }
 
-    if (cpuMonitor.sampleCpuUtilization()) {
-      encoderStat.append("CPU%: ")
-          .append(cpuMonitor.getCpuCurrent()).append("/")
-          .append(cpuMonitor.getCpuAvg3()).append("/")
-          .append(cpuMonitor.getCpuAvgAll());
+    if (cpuMonitor != null) {
+      encoderStat.append("CPU%: ").append(cpuMonitor.getCpuUsageCurrent())
+        .append(". Freq: ").append(cpuMonitor.getCpuFrequencyScaleCurrent());
     }
     encoderStatView.setText(encoderStat.toString());
   }
 }