change virtual setMatrixClip() to take a SkClipStack parameter.



git-svn-id: http://skia.googlecode.com/svn/trunk@831 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/include/gpu/SkGpuDevice.h b/include/gpu/SkGpuDevice.h
index db65e05..2db3380 100644
--- a/include/gpu/SkGpuDevice.h
+++ b/include/gpu/SkGpuDevice.h
@@ -77,7 +77,8 @@
     virtual bool readPixels(const SkIRect& srcRect, SkBitmap* bitmap);
     virtual void writePixels(const SkBitmap& bitmap, int x, int y);
 
-    virtual void setMatrixClip(const SkMatrix& matrix, const SkRegion& clip);
+    virtual void setMatrixClip(const SkMatrix& matrix, const SkRegion& clip,
+                               const SkClipStack&);
 
     virtual void drawPaint(const SkDraw&, const SkPaint& paint);
     virtual void drawPoints(const SkDraw&, SkCanvas::PointMode mode, size_t count,