Revert of Revert of Revert "De-virtualize SkCanvas save/restore."

src/utils/debugger/SkDebugCanvas.cpp

Index: src/utils/debugger/SkDebugCanvas.cpp
diff --git a/src/utils/debugger/SkDebugCanvas.cpp b/src/utils/debugger/SkDebugCanvas.cpp
index 67ecc65b08689742c35bf77a6be5821f1358ce2d..08e6d94f9e58eb717f363b9a50e70ffd624bc6f9 100644
--- a/src/utils/debugger/SkDebugCanvas.cpp
+++ b/src/utils/debugger/SkDebugCanvas.cpp
@@ -530,9 +530,8 @@
     this->addDrawCommand(new SkPopCullCommand());
 }
 
-void SkDebugCanvas::onRestore() {
-    this->addDrawCommand(new SkRestoreCommand());
-    this->INHERITED::onRestore();
+void SkDebugCanvas::restore() {
+    addDrawCommand(new SkRestoreCommand());
 }
 
 bool SkDebugCanvas::rotate(SkScalar degrees) {
@@ -540,17 +539,15 @@
     return true;
 }
 
-void SkDebugCanvas::onSave(SaveFlags flags) {
-    this->addDrawCommand(new SkSaveCommand(flags));
-    this->INHERITED::onSave(flags);
-}
-
-bool SkDebugCanvas::onSaveLayer(const SkRect* bounds, const SkPaint* paint,
-                                SaveFlags flags) {
-    this->addDrawCommand(new SkSaveLayerCommand(bounds, paint, flags));
-    this->INHERITED::onSaveLayer(bounds, paint, flags);
-    // No need for a full layer.
-    return false;
+int SkDebugCanvas::save(SaveFlags flags) {
+    addDrawCommand(new SkSaveCommand(flags));
+    return true;
+}
+
+int SkDebugCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
+        SaveFlags flags) {
+    addDrawCommand(new SkSaveLayerCommand(bounds, paint, flags));
+    return true;
 }
 
 bool SkDebugCanvas::scale(SkScalar sx, SkScalar sy) {