Update CPU Monitor to report CPU frequency and battery level.

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

Index: webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java
diff --git a/webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java b/webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java
index cc7015b8a69ab2656f4e109652e1fa8269050bce..776765e6b7de1b3186528e5231928d640ba6aa54 100644
--- a/webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java
+++ b/webrtc/examples/androidapp/src/org/appspot/apprtc/HudFragment.java
@@ -38,7 +38,7 @@ public class HudFragment extends Fragment {
   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,
@@ -89,6 +89,10 @@ public class HudFragment extends Fragment {
     super.onStop();
   }
 
+  public void setCpuMonitor(CpuMonitor cpuMonitor) {
+    this.cpuMonitor = cpuMonitor;
+  }
+
   private void hudViewsSetProperties(int visibility) {
     hudViewBwe.setVisibility(visibility);
     hudViewConnection.setVisibility(visibility);
@@ -189,11 +193,9 @@ public class HudFragment extends Fragment {
       }
     }
 
-    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());
   }