Make SkColorSpace a public API

src/core/SkColorSpace.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include "SkAtomics.h"
 #include "SkColorSpace.h"
 #include "SkColorSpacePriv.h"
 #include "SkOnce.h"
 
 static bool color_space_almost_equal(float a, float b) {
     return SkTAbs(a - b) < 0.01f;
 }
 
 //////////////////////////////////////////////////////////////////////////////////////////////////
 
-static int32_t gUniqueColorSpaceID;
-
 SkColorSpace::SkColorSpace(sk_sp<SkGammas> gammas, const SkMatrix44& toXYZD50, Named named)
     : fGammas(gammas)
     , fToXYZD50(toXYZD50)
-    , fUniqueID(sk_atomic_inc(&gUniqueColorSpaceID))
     , fNamed(named)
 {}
 
 SkColorSpace::SkColorSpace(SkColorLookUpTable* colorLUT, sk_sp<SkGammas> gammas,
                            const SkMatrix44& toXYZD50)
     : fColorLUT(colorLUT)
     , fGammas(gammas)
     , fToXYZD50(toXYZD50)
-    , fUniqueID(sk_atomic_inc(&gUniqueColorSpaceID))
     , fNamed(kUnknown_Named)
 {}
 
 const float gSRGB_toXYZD50[] {
     0.4358f, 0.2224f, 0.0139f,    // * R
     0.3853f, 0.7170f, 0.0971f,    // * G
     0.1430f, 0.0606f, 0.7139f,    // * B
 };
 
 const float gAdobeRGB_toXYZD50[] {
@@ skipping 698 matching lines @@
                 }
             }
 
         }
         default:
             break;
     }
 
     return_null("ICC profile contains unsupported colorspace");
 }