add Method param to drawTextOnPath, supporting SVG spec

src/pdf/SkPDFDevice.cpp

Index: src/pdf/SkPDFDevice.cpp
diff --git a/src/pdf/SkPDFDevice.cpp b/src/pdf/SkPDFDevice.cpp
index c3ee262db34ab3b6f149ba98ee61a855e9cca886..75a56cbb4d25057a42015c4e1ec2ae60518e5067 100644
--- a/src/pdf/SkPDFDevice.cpp
+++ b/src/pdf/SkPDFDevice.cpp
@@ -1196,11 +1196,12 @@ void SkPDFDevice::drawPosText(const SkDraw& d, const void* text, size_t len,
 
 void SkPDFDevice::drawTextOnPath(const SkDraw& d, const void* text, size_t len,
                                  const SkPath& path, const SkMatrix* matrix,
-                                 const SkPaint& paint) {
+                                 SK_SUPPORT_LEGACY_DRAWTEXTONPATH_PARAM const SkPaint& paint) {
     if (d.fClip->isEmpty()) {
         return;
     }
-    d.drawTextOnPath((const char*)text, len, path, matrix, paint);
+    SK_SUPPORT_LEGACY_DRAWTEXTONPATH_DEFAULT_METHOD
+    d.drawTextOnPath((const char*)text, len, path, matrix, method, paint);
 }
 
 void SkPDFDevice::drawVertices(const SkDraw& d, SkCanvas::VertexMode,