Revert "De-virtualize SkCanvas save/restore."

(To allow a roll fix into the tree).

This reverts commit edf702204be42c945254191f9f9cd6585b3d189b.

R=halcanary@google.com

Review URL: https://codereview.chromium.org/194923008

git-svn-id: http://skia.googlecode.com/svn/trunk@13748 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/utils/SkProxyCanvas.cpp b/src/utils/SkProxyCanvas.cpp
index f61a31d..0a9d7a8 100644
--- a/src/utils/SkProxyCanvas.cpp
+++ b/src/utils/SkProxyCanvas.cpp
@@ -21,22 +21,17 @@
 
 ///////////////////////////////// Overrides ///////////
 
-void SkProxyCanvas::onSave(SaveFlags flags) {
-    fProxy->save(flags);
-    this->INHERITED::onSave(flags);
+int SkProxyCanvas::save(SaveFlags flags) {
+    return fProxy->save(flags);
 }
 
-bool SkProxyCanvas::onSaveLayer(const SkRect* bounds, const SkPaint* paint,
-                                SaveFlags flags) {
-    fProxy->saveLayer(bounds, paint, flags);
-    this->INHERITED::onSaveLayer(bounds, paint, flags);
-    // No need for a layer.
-    return false;
+int SkProxyCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
+                             SaveFlags flags) {
+    return fProxy->saveLayer(bounds, paint, flags);
 }
 
-void SkProxyCanvas::onRestore() {
+void SkProxyCanvas::restore() {
     fProxy->restore();
-    this->INHERITED::onRestore();
 }
 
 bool SkProxyCanvas::translate(SkScalar dx, SkScalar dy) {