Add gammaIsLinear() API to SkColorSpace

src/core/SkColorSpace.cpp

Index: src/core/SkColorSpace.cpp
diff --git a/src/core/SkColorSpace.cpp b/src/core/SkColorSpace.cpp
index 191d077223da772f7b71a4840ba6bf6b090b0f21..486699ecf60d65ea9ee742143bcf92b48be2db40 100644
--- a/src/core/SkColorSpace.cpp
+++ b/src/core/SkColorSpace.cpp
@@ -407,42 +407,3 @@ bool SkColorSpace::Equals(const SkColorSpace* src, const SkColorSpace* dst) {
                    0 == memcmp(srcData->data(), dstData->data(), srcData->size());
     }
 }
-
-bool SkColorSpace::gammasAreMatching() const {
-    const SkGammas* gammas = as_CSB(this)->gammas();
-    SkASSERT(gammas);
-    return gammas->fRedType == gammas->fGreenType && gammas->fGreenType == gammas->fBlueType &&
-           gammas->fRedData == gammas->fGreenData && gammas->fGreenData == gammas->fBlueData;
-}
-
-bool SkColorSpace::gammasAreNamed() const {
-    const SkGammas* gammas = as_CSB(this)->gammas();
-    SkASSERT(gammas);
-    return gammas->fRedType == SkGammas::Type::kNamed_Type &&
-           gammas->fGreenType == SkGammas::Type::kNamed_Type &&
-           gammas->fBlueType == SkGammas::Type::kNamed_Type;
-}
-
-bool SkColorSpace::gammasAreValues() const {
-    const SkGammas* gammas = as_CSB(this)->gammas();
-    SkASSERT(gammas);
-    return gammas->fRedType == SkGammas::Type::kValue_Type &&
-           gammas->fGreenType == SkGammas::Type::kValue_Type &&
-           gammas->fBlueType == SkGammas::Type::kValue_Type;
-}
-
-bool SkColorSpace::gammasAreTables() const {
-    const SkGammas* gammas = as_CSB(this)->gammas();
-    SkASSERT(gammas);
-    return gammas->fRedType == SkGammas::Type::kTable_Type &&
-           gammas->fGreenType == SkGammas::Type::kTable_Type &&
-           gammas->fBlueType == SkGammas::Type::kTable_Type;
-}
-
-bool SkColorSpace::gammasAreParams() const {
-    const SkGammas* gammas = as_CSB(this)->gammas();
-    SkASSERT(gammas);
-    return gammas->fRedType == SkGammas::Type::kParam_Type &&
-           gammas->fGreenType == SkGammas::Type::kParam_Type &&
-           gammas->fBlueType == SkGammas::Type::kParam_Type;
-}