Deprecate SaveFlags use in the public SkCanvas API.

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 0598528ba2c5805f8f2c9f339f3ae002d303f991..6c0fc884e1a53472f3a3681df8537c69dc283c6a 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -834,6 +834,11 @@ void SkCanvas::willSave(SaveFlags) {
     // Do nothing. Subclasses may do something.
 }
 
+int SkCanvas::save() {
+    this->willSave(kMatrixClip_SaveFlag);
+    return this->internalSave(kMatrixClip_SaveFlag);
+}
+
 int SkCanvas::save(SaveFlags flags) {
     this->willSave(flags);
     // call shared impl
@@ -898,9 +903,13 @@ SkCanvas::SaveLayerStrategy SkCanvas::willSaveLayer(const SkRect*, const SkPaint
     return kFullLayer_SaveLayerStrategy;
 }
 
+int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint) {
+    SaveLayerStrategy strategy = this->willSaveLayer(bounds, paint, kARGB_ClipLayer_SaveFlag);
+    return this->internalSaveLayer(bounds, paint, kARGB_ClipLayer_SaveFlag, false, strategy);
+}
+
 int SkCanvas::saveLayer(const SkRect* bounds, const SkPaint* paint,
                         SaveFlags flags) {
-    // Overriding classes may return false to signal that we don't need to create a layer.
     SaveLayerStrategy strategy = this->willSaveLayer(bounds, paint, flags);
     return this->internalSaveLayer(bounds, paint, flags, false, strategy);
 }
@@ -975,6 +984,10 @@ int SkCanvas::internalSaveLayer(const SkRect* bounds, const SkPaint* paint, Save
     return count;
 }
 
+int SkCanvas::saveLayerAlpha(const SkRect* bounds, U8CPU alpha) {
+    return this->saveLayerAlpha(bounds, alpha, kARGB_ClipLayer_SaveFlag);
+}
+
 int SkCanvas::saveLayerAlpha(const SkRect* bounds, U8CPU alpha,
                              SaveFlags flags) {
     if (0xFF == alpha) {