Add SkSourceGammaTreatment enum so we know how to create mips

include/gpu/SkGr.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkGr_DEFINED
 #define SkGr_DEFINED
 
@@ skipping 50 matching lines @@
 
 static inline GrColor SkPMColorToGrColor(SkPMColor c) {
     return GrColorPackRGBA(SkGetPackedR32(c), SkGetPackedG32(c), SkGetPackedB32(c),
                            SkGetPackedA32(c));
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 /** Returns a texture representing the bitmap that is compatible with the GrTextureParams. The
     texture is inserted into the cache (unless the bitmap is marked volatile) and can be
     retrieved again via this function. */
-GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams&);
+GrTexture* GrRefCachedBitmapTexture(GrContext*, const SkBitmap&, const GrTextureParams&,
+                                    SkSourceGammaTreatment);
 
 // TODO: Move SkImageInfo2GrPixelConfig to SkGrPriv.h (requires cleanup to SkWindow its subclasses).
 GrPixelConfig SkImageInfo2GrPixelConfig(SkColorType, SkAlphaType, SkColorProfileType, const GrCaps&);
 
 static inline GrPixelConfig SkImageInfo2GrPixelConfig(const SkImageInfo& info, const GrCaps& caps) {
     return SkImageInfo2GrPixelConfig(info.colorType(), info.alphaType(), info.profileType(), caps);
 }
 
 GrTextureParams::FilterMode GrSkFilterQualityToGrFilterMode(SkFilterQuality paintFilterQuality,
                                                             const SkMatrix& viewM,
                                                             const SkMatrix& localM,
                                                             bool* doBicubic);
 
 ////////////////////////////////////////////////////////////////////////////////
 
 SkImageInfo GrMakeInfoFromTexture(GrTexture* tex, int w, int h, bool isOpaque);
 
 // Using the dreaded SkGrPixelRef ...
 SK_API void GrWrapTextureInBitmap(GrTexture* src, int w, int h, bool isOpaque,
                                   SkBitmap* dst);
 
 #endif