SkColorSpace: remove named API, add gamut API

Reland from: https://skia-review.googlesource.com/c/8021/

BUG=skia:

Change-Id: I18985f130587b15fccbc86b76b2bb5c49ba5ba8a
Reviewed-on: https://skia-review.googlesource.com/8136
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Matt Sarett <msarett@google.com>
diff --git a/src/gpu/GrRenderTargetContext.cpp b/src/gpu/GrRenderTargetContext.cpp
index 8e90b04..918d8d4 100644
--- a/src/gpu/GrRenderTargetContext.cpp
+++ b/src/gpu/GrRenderTargetContext.cpp
@@ -89,7 +89,7 @@
     , fSurfaceProps(SkSurfacePropsCopyOrDefault(surfaceProps)) {
     if (fColorSpace) {
         // sRGB sources are very common (SkColor, etc...), so we cache that gamut transformation
-        auto srgbColorSpace = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
+        auto srgbColorSpace = SkColorSpace::MakeSRGB();
         fColorXformFromSRGB = GrColorSpaceXform::Make(srgbColorSpace.get(), fColorSpace.get());
     }
     SkDEBUGCODE(this->validate();)
diff --git a/src/gpu/GrTestUtils.cpp b/src/gpu/GrTestUtils.cpp
index 35af494..1d3b775 100644
--- a/src/gpu/GrTestUtils.cpp
+++ b/src/gpu/GrTestUtils.cpp
@@ -8,7 +8,7 @@
 #include "GrTestUtils.h"
 #include "GrProcessorUnitTest.h"
 #include "GrStyle.h"
-#include "SkColorSpace.h"
+#include "SkColorSpace_Base.h"
 #include "SkDashPathPriv.h"
 #include "SkMatrix.h"
 #include "SkPath.h"
@@ -299,8 +299,8 @@
         // No color space (legacy mode)
         gColorSpaces[0] = nullptr;
         // sRGB or Adobe
-        gColorSpaces[1] = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
-        gColorSpaces[2] = SkColorSpace::MakeNamed(SkColorSpace::kAdobeRGB_Named);
+        gColorSpaces[1] = SkColorSpace::MakeSRGB();
+        gColorSpaces[2] = SkColorSpace_Base::MakeNamed(SkColorSpace_Base::kAdobeRGB_Named);
     }
     return gColorSpaces[random->nextULessThan(static_cast<uint32_t>(SK_ARRAY_COUNT(gColorSpaces)))];
 }
@@ -310,8 +310,8 @@
     static bool gOnce;
     if (!gOnce) {
         gOnce = true;
-        sk_sp<SkColorSpace> srgb = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
-        sk_sp<SkColorSpace> adobe = SkColorSpace::MakeNamed(SkColorSpace::kAdobeRGB_Named);
+        sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
+        sk_sp<SkColorSpace> adobe = SkColorSpace_Base::MakeNamed(SkColorSpace_Base::kAdobeRGB_Named);
         // No gamut change
         gXforms[0] = nullptr;
         // To larger gamut
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index ad43eef..0dbe577 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -303,7 +303,7 @@
 
 GrColor4f SkColorToUnpremulGrColor4f(SkColor c, SkColorSpace* dstColorSpace) {
     if (dstColorSpace) {
-        auto srgbColorSpace = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
+        auto srgbColorSpace = SkColorSpace::MakeSRGB();
         auto gamutXform = GrColorSpaceXform::Make(srgbColorSpace.get(), dstColorSpace);
         return SkColorToUnpremulGrColor4f(c, true, gamutXform.get());
     } else {