Revert of setConfig -> setInfo

src/core/SkValidationUtils.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkValidationUtils_DEFINED
 #define SkValidationUtils_DEFINED
 
 #include "SkBitmap.h"
 #include "SkXfermode.h"
 
 /** Returns true if coeff's value is in the SkXfermode::Coeff enum.
   */
 static inline bool SkIsValidCoeff(SkXfermode::Coeff coeff) {
     return coeff >= 0 && coeff < SkXfermode::kCoeffCount;
 }
 
 /** Returns true if mode's value is in the SkXfermode::Mode enum.
   */
 static inline bool SkIsValidMode(SkXfermode::Mode mode) {
     return (mode >= 0) && (mode <= SkXfermode::kLastMode);
 }
 
+/** Returns true if config's value is in the SkBitmap::Config enum.
+  */
+static inline bool SkIsValidConfig(SkBitmap::Config config) {
+    return (config >= 0) && (config <= static_cast<int>(SkBitmap::kConfigCount));
+}
+
 /** Returns true if the rect's dimensions are between 0 and SK_MaxS32
   */
 static inline bool SkIsValidIRect(const SkIRect& rect) {
     return rect.width() >= 0 && rect.height() >= 0;
 }
 
 /** Returns true if the rect's dimensions are between 0 and SK_ScalarMax
   */
 static inline bool SkIsValidRect(const SkRect& rect) {
     return (rect.fLeft <= rect.fRight) &&
            (rect.fTop <= rect.fBottom) &&
            SkScalarIsFinite(rect.width()) &&
            SkScalarIsFinite(rect.height());
 }
 
 #endif