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

src/utils/SkDeferredCanvas.cpp

 
 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkDeferredCanvas.h"
 
@@ skipping 721 matching lines @@
             transformedRect.fRight < SkIntToScalar(canvasSize.fWidth) ||
             transformedRect.fBottom < SkIntToScalar(canvasSize.fHeight)) {
             return false;
         }
     }
 
     return this->getClipStack()->quickContains(SkRect::MakeXYWH(0, 0,
         SkIntToScalar(canvasSize.fWidth), SkIntToScalar(canvasSize.fHeight)));
 }
 
-int SkDeferredCanvas::save(SaveFlags flags) {
+void SkDeferredCanvas::onSave(SaveFlags flags) {
     this->drawingCanvas()->save(flags);
-    int val = this->INHERITED::save(flags);
     this->recordedDrawCommand();
-
-    return val;
+    this->INHERITED::onSave(flags);
 }
 
-int SkDeferredCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
-                                SaveFlags flags) {
+bool SkDeferredCanvas::onSaveLayer(const SkRect* bounds, const SkPaint* paint,
+                                   SaveFlags flags) {
     this->drawingCanvas()->saveLayer(bounds, paint, flags);
-    int count = this->INHERITED::save(flags);
-    this->clipRectBounds(bounds, flags, NULL);
     this->recordedDrawCommand();
-
-    return count;
+    this->INHERITED::onSaveLayer(bounds, paint, flags);
+    // No need for a full layer.
+    return false;
 }
 
-void SkDeferredCanvas::restore() {
+void SkDeferredCanvas::onRestore() {
     this->drawingCanvas()->restore();
-    this->INHERITED::restore();
     this->recordedDrawCommand();
+    this->INHERITED::onRestore();
 }
 
 bool SkDeferredCanvas::isDrawingToLayer() const {
     return this->drawingCanvas()->isDrawingToLayer();
 }
 
 bool SkDeferredCanvas::translate(SkScalar dx, SkScalar dy) {
     this->drawingCanvas()->translate(dx, dy);
     bool val = this->INHERITED::translate(dx, dy);
     this->recordedDrawCommand();
@@ skipping 261 matching lines @@
 SkDrawFilter* SkDeferredCanvas::setDrawFilter(SkDrawFilter* filter) {
     this->drawingCanvas()->setDrawFilter(filter);
     this->INHERITED::setDrawFilter(filter);
     this->recordedDrawCommand();
     return filter;
 }
 
 SkCanvas* SkDeferredCanvas::canvasForDrawIter() {
     return this->drawingCanvas();
 }