Add hooks to implement Canvas.drawTextOnPath() in GL

Change-Id: I165c9e05facf5365aa6850605688e538640c7fcc
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 55e2ca5..6f0f836 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -2292,6 +2292,11 @@
     drawTextDecorations(text, bytesCount, length, oldX, oldY, paint);
 }
 
+void OpenGLRenderer::drawTextOnPath(const char* text, int bytesCount, int count, SkPath* path,
+        float hOffset, float vOffset, SkPaint* paint) {
+    // TODO: Implement
+}
+
 void OpenGLRenderer::drawPath(SkPath* path, SkPaint* paint) {
     if (mSnapshot->isIgnored()) return;