add drawPicture variant that takes a matrix and paint

src/gpu/GrPictureUtils.cpp

Index: src/gpu/GrPictureUtils.cpp
diff --git a/src/gpu/GrPictureUtils.cpp b/src/gpu/GrPictureUtils.cpp
index 0bcd927e578806179fe8b5f015cc18769f0c235b..b33bf2a61085587dc277af67112ddb219335e169 100644
--- a/src/gpu/GrPictureUtils.cpp
+++ b/src/gpu/GrPictureUtils.cpp
@@ -234,7 +234,8 @@ protected:
         this->updateClipConservativelyUsingBounds(rrect.getBounds(), op, false);
     }
 
-    virtual void onDrawPicture(const SkPicture* picture) SK_OVERRIDE {
+    virtual void onDrawPicture(const SkPicture* picture, const SkMatrix* matrix,
+                               const SkPaint* paint) SK_OVERRIDE {
         if (NULL != picture->fData.get()) {
             // Disable the BBH for the old path so all the draw calls
             // will be seen. The stock SkPicture::draw method can't be