Add SkSourceGammaTreatment enum so we know how to create mips

src/effects/SkTableColorFilter.cpp

 /*
 * Copyright 2015 Google Inc.
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */
 
 #include "SkTableColorFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 455 matching lines @@
     desc.fWidth  = bitmap.width();
     desc.fHeight = 128;
     desc.fRowHeight = bitmap.height();
     desc.fContext = context;
     desc.fConfig = SkImageInfo2GrPixelConfig(bitmap.info(), *context->caps());
     GrTextureStripAtlas* atlas = GrTextureStripAtlas::GetAtlas(desc);
     int row = atlas->lockRow(bitmap);
     SkAutoTUnref<GrTexture> texture;
     if (-1 == row) {
         atlas = nullptr;
-        texture.reset(GrRefCachedBitmapTexture(context, bitmap, GrTextureParams::ClampNoFilter()));
+        texture.reset(GrRefCachedBitmapTexture(context, bitmap, GrTextureParams::ClampNoFilter(),
+                                               SkSourceGammaTreatment::kRespect));
     } else {
         texture.reset(SkRef(atlas->getTexture()));
     }
 
     return new ColorTableEffect(texture, atlas, row, flags);
 }
 
 ColorTableEffect::ColorTableEffect(GrTexture* texture, GrTextureStripAtlas* atlas, int row,
                                    unsigned flags)
     : fTextureAccess(texture)
@@ skipping 107 matching lines @@
 sk_sp<SkColorFilter> SkTableColorFilter::MakeARGB(const uint8_t tableA[256],
                                                   const uint8_t tableR[256],
                                                   const uint8_t tableG[256],
                                                   const uint8_t tableB[256]) {
     return sk_make_sp<SkTable_ColorFilter>(tableA, tableR, tableG, tableB);
 }
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END