Use SurfaceTexture to show Camera preview.

Change-Id: I8bf63dfc5b969ecce51841378b093a650b6f91d8
diff --git a/tests/src/com/android/gallery3d/ui/GLCanvasStub.java b/tests/src/com/android/gallery3d/ui/GLCanvasStub.java
index 70fef1a..ee43cb9 100644
--- a/tests/src/com/android/gallery3d/ui/GLCanvasStub.java
+++ b/tests/src/com/android/gallery3d/ui/GLCanvasStub.java
@@ -57,6 +57,8 @@
     public void drawTexture(BasicTexture texture,
             int x, int y, int width, int height, float alpha) {}
     public void drawTexture(BasicTexture texture, RectF source, RectF target) {}
+    public void drawTexture(BasicTexture texture, float[] mTextureTransform,
+            int x, int y, int w, int h) {}
     public void drawMixed(BasicTexture from, BasicTexture to,
             float ratio, int x, int y, int w, int h) {}
     public void drawMixed(BasicTexture from, int to,