| Index: talk/app/webrtc/java/android/org/webrtc/RendererCommon.java
 | 
| diff --git a/talk/app/webrtc/java/android/org/webrtc/RendererCommon.java b/talk/app/webrtc/java/android/org/webrtc/RendererCommon.java
 | 
| index fec41c12e9c719a5be09708893d63fc8ca1d7dcc..94d180da5a0b80d392239505f9ab63485c76df3f 100644
 | 
| --- a/talk/app/webrtc/java/android/org/webrtc/RendererCommon.java
 | 
| +++ b/talk/app/webrtc/java/android/org/webrtc/RendererCommon.java
 | 
| @@ -76,6 +76,15 @@ public class RendererCommon {
 | 
|          0,  1, 0, 1};
 | 
|    }
 | 
|  
 | 
| +  // Matrix with transform x' = 1 - x.
 | 
| +  public static final float[] horizontalFlipMatrix() {
 | 
| +    return new float[] {
 | 
| +        -1, 0, 0, 0,
 | 
| +         0, 1, 0, 0,
 | 
| +         0, 0, 1, 0,
 | 
| +         1, 0, 0, 1};
 | 
| +  }
 | 
| +
 | 
|    /**
 | 
|     * Returns texture matrix that will have the effect of rotating the frame |rotationDegree|
 | 
|     * clockwise when rendered.
 | 
| 
 |