Merge "Implement SkCanvasGlue::clipRegion() using clipPath()."

                               jlong deviceRgnHandle, jint op) {

        SkCanvas* canvas = getNativeCanvas(canvasHandle);

        SkRegion* deviceRgn = reinterpret_cast<SkRegion*>(deviceRgnHandle);

        canvas->clipRegion(*deviceRgn, static_cast<SkRegion::Op>(op));

        SkPath rgnPath;

        if (deviceRgn->getBoundaryPath(&rgnPath)) {

            // The region is specified in device space.

            SkMatrix savedMatrix = canvas->getTotalMatrix();

            canvas->resetMatrix();

            canvas->clipPath(rgnPath, static_cast<SkRegion::Op>(op));

            canvas->setMatrix(savedMatrix);

        } else {

            canvas->clipRect(SkRect::MakeEmpty(), static_cast<SkRegion::Op>(op));

        }

        return hasNonEmptyClip(*canvas);

    }