move annotations to canvas virtual

src/pdf/SkPDFDevice.h

Index: src/pdf/SkPDFDevice.h
diff --git a/src/pdf/SkPDFDevice.h b/src/pdf/SkPDFDevice.h
index 31f6de11eefd7b561d247a722d4391772f30d82d..bc71e46dbb5d340b5ebb939565e4c67f117cd146 100644
--- a/src/pdf/SkPDFDevice.h
+++ b/src/pdf/SkPDFDevice.h
@@ -198,6 +198,8 @@ protected:
 
     SkSurface* newSurface(const SkImageInfo&, const SkSurfaceProps&) override;
 
+    void drawAnnotation(const SkDraw&, const SkRect&, const char key[], SkData* value) override;
+
 private:
     // TODO(vandebo): push most of SkPDFDevice's state into a core object in
     // order to get the right access levels without using friend.
@@ -303,10 +305,8 @@ private:
     bool handleInversePath(const SkDraw& d, const SkPath& origPath,
                            const SkPaint& paint, bool pathIsMutable,
                            const SkMatrix* prePathMatrix = nullptr);
-    bool handlePointAnnotation(const SkPoint* points, size_t count,
-                               const SkMatrix& matrix, SkAnnotation* annot);
-    bool handlePathAnnotation(const SkPath& path, const SkDraw& d,
-                              SkAnnotation* annot);
+    void handlePointAnnotation(const SkPoint&, const SkMatrix&, const char key[], SkData* value);
+    void handlePathAnnotation(const SkPath&, const SkDraw& d, const char key[], SkData* value);
 
     typedef SkBaseDevice INHERITED;