SaveFlags be-gone

Remove the deprecated save(SaveFlags), willSave(SaveFlags) and all
traces of kMatrix_SaveFlags/kClip_SaveFlag.

BUG=skia:2297
R=mtklein@google.com, reed@google.com, robertphillips@google.com

Review URL: https://codereview.chromium.org/340403003
diff --git a/src/utils/debugger/SkDebugCanvas.h b/src/utils/debugger/SkDebugCanvas.h
index f15b397..a3902d2 100644
--- a/src/utils/debugger/SkDebugCanvas.h
+++ b/src/utils/debugger/SkDebugCanvas.h
@@ -231,7 +231,7 @@
     }
 
 protected:
-    virtual void willSave(SaveFlags) SK_OVERRIDE;
+    virtual void willSave() SK_OVERRIDE;
     virtual SaveLayerStrategy willSaveLayer(const SkRect*, const SkPaint*, SaveFlags) SK_OVERRIDE;
     virtual void willRestore() SK_OVERRIDE;