Deprecate SaveFlags use in the public SkCanvas API.

include/core/SkPostConfig.h

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkPostConfig_DEFINED
 #define SkPostConfig_DEFINED
 
@@ skipping 305 matching lines @@
 
 #if !defined(SK_UNUSED)
 #  define SK_UNUSED SK_ATTRIBUTE(unused)
 #endif
 
 #if !defined(SK_ATTR_DEPRECATED)
    // FIXME: we ignore msg for now...
 #  define SK_ATTR_DEPRECATED(msg) SK_ATTRIBUTE(deprecated)
 #endif
 
+#if !defined(SK_ATTR_EXTERNALLY_DEPRECATED)
+#  if !defined(SK_INTERNAL)
+#    define SK_ATTR_EXTERNALLY_DEPRECATED(msg) SK_ATTR_DEPRECATED(msg)
+#  else
+#    define SK_ATTR_EXTERNALLY_DEPRECATED(msg)
+#  endif
+#endif
+
 /**
  * If your judgment is better than the compiler's (i.e. you've profiled it),
  * you can use SK_ALWAYS_INLINE to force inlining. E.g.
  *     inline void someMethod() { ... }             // may not be inlined
  *     SK_ALWAYS_INLINE void someMethod() { ... }   // should always be inlined
  */
 #if !defined(SK_ALWAYS_INLINE)
 #  if defined(SK_BUILD_FOR_WIN)
 #    define SK_ALWAYS_INLINE __forceinline
 #  else
@@ skipping 62 matching lines @@
 
 #if defined(SK_GAMMA_EXPONENT) && defined(SK_GAMMA_SRGB)
 #  error "cannot define both SK_GAMMA_EXPONENT and SK_GAMMA_SRGB"
 #elif defined(SK_GAMMA_SRGB)
 #  define SK_GAMMA_EXPONENT (0.0f)
 #elif !defined(SK_GAMMA_EXPONENT)
 #  define SK_GAMMA_EXPONENT (2.2f)
 #endif
 
 #endif // SkPostConfig_DEFINED