am e91c8d0: Added interface to SurfaceTexture needed by WebKit.

* commit 'e91c8d0414333e4686a4473aaf1d8b1b1e0ba291':
  Added interface to SurfaceTexture needed by WebKit.

Author: drWulf

include/gui/SurfaceTexture.h

@@ -34,6 +34,7 @@ struct SurfaceTexture {
     GLenum getCurrentTextureTarget() const { return 0; }
     void setBufferCount(int bufferCount) {}
     sp<GraphicBuffer> getCurrentBuffer() const { return NULL; }
+    int64_t getTimestamp() { return 0; }
 };
 
 static sp<SurfaceTexture> SurfaceTexture_getSurfaceTexture(JNIEnv* env, jobject thiz)