Android SurfaceViewRenderer: Add resetStatistics() method

talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java

Index: talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java
diff --git a/talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java b/talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java
index 170827efc11acd34726b9fe12ca688d6aa6162a1..ed6e8dd2d62a19bab45c7338094cd39a73db0503 100644
--- a/talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java
+++ b/talk/app/webrtc/java/android/org/webrtc/SurfaceViewRenderer.java
@@ -243,6 +243,14 @@ public class SurfaceViewRenderer extends SurfaceView
       frameRotation = 0;
       rendererEvents = null;
     }
+    resetStatistics();
+  }
+
+  /**
+   * Reset statistics. This will reset the logged statistics in logStatistics(), and
+   * RendererEvents.onFirstFrameRendered() will be called for the next frame.
+   */
+  public void resetStatistics() {
     synchronized (statisticsLock) {
       framesReceived = 0;
       framesDropped = 0;