color: Do not enforce T(0)=0 and T(1)=1 constraints in approxmation

ui/gfx/icc_profile.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef UI_GFX_ICC_PROFILE_H_
 #define UI_GFX_ICC_PROFILE_H_
 
 #include <stdint.h>
 #include <vector>
 
@@ skipping 64 matching lines @@
   static bool CachedProfilesNeedUpdate();
 #endif
 
  private:
   friend ICCProfile ICCProfileForTestingAdobeRGB();
   friend ICCProfile ICCProfileForTestingColorSpin();
   friend ICCProfile ICCProfileForTestingGenericRGB();
   friend ICCProfile ICCProfileForTestingSRGB();
   friend ICCProfile ICCProfileForTestingNoAnalyticTrFn();
   friend ICCProfile ICCProfileForTestingA2BOnly();
+  friend ICCProfile ICCProfileForTestingOvershoot();
   static const uint64_t test_id_adobe_rgb_;
   static const uint64_t test_id_color_spin_;
   static const uint64_t test_id_generic_rgb_;
   static const uint64_t test_id_srgb_;
   static const uint64_t test_id_no_analytic_tr_fn_;
   static const uint64_t test_id_a2b_only_;
+  static const uint64_t test_id_overshoot_;
 
   // Populate |icc_profile| with the ICCProfile corresponding to id |id|. Return
   // false if |id| is not in the cache.
   static bool FromId(uint64_t id, ICCProfile* icc_profile);
 
   // This method is used to hard-code the |id_| to a specific value, and is
   // used by test methods to ensure that they don't conflict with the values
   // generated in the browser.
   static ICCProfile FromDataWithId(const void* icc_profile,
                                    size_t size,
@@ skipping 22 matching lines @@
   FRIEND_TEST_ALL_PREFIXES(SimpleColorSpace, GetColorSpace);
   friend int ::LLVMFuzzerTestOneInput(const uint8_t*, size_t);
   friend class ColorSpace;
   friend class ColorTransformInternal;
   friend struct IPC::ParamTraits<gfx::ICCProfile>;
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_ICC_PROFILE_H_