Revert "SkColorSpace: remove named API, add gamut API"

This reverts commit ecaaf6f1c156e5690200322fc2636380c1f63dd8.

Reason for revert: Breaks everything

Original change's description:
> SkColorSpace: remove named API, add gamut API
> 
> BUG=skia:
> 
> Change-Id: I01c5e1874c9a034febc64e25b3aaafb5050393a6
> Reviewed-on: https://skia-review.googlesource.com/8021
> Reviewed-by: Brian Osman <brianosman@google.com>
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Matt Sarett <msarett@google.com>
> 

TBR=msarett@google.com,brianosman@google.com,reed@google.com,reviews@skia.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Change-Id: Ief5a0a4eeabe75a21f7512e23fc15309151066c4
Reviewed-on: https://skia-review.googlesource.com/8127
Commit-Queue: Matt Sarett <msarett@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
diff --git a/tools/viewer/sk_app/VulkanWindowContext.cpp b/tools/viewer/sk_app/VulkanWindowContext.cpp
index 898710f..4802e21 100644
--- a/tools/viewer/sk_app/VulkanWindowContext.cpp
+++ b/tools/viewer/sk_app/VulkanWindowContext.cpp
@@ -171,7 +171,7 @@
     // Pick our surface format. For now, just make sure it matches our sRGB request:
     VkFormat surfaceFormat = VK_FORMAT_UNDEFINED;
     VkColorSpaceKHR colorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR;
-    auto srgbColorSpace = SkColorSpace::MakeSRGB();
+    auto srgbColorSpace = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
     bool wantSRGB = srgbColorSpace == params.fColorSpace;
     for (uint32_t i = 0; i < surfaceFormatCount; ++i) {
         GrPixelConfig config;
diff --git a/tools/viewer/sk_app/WindowContext.cpp b/tools/viewer/sk_app/WindowContext.cpp
index 8efe9bd..3da8dd1 100644
--- a/tools/viewer/sk_app/WindowContext.cpp
+++ b/tools/viewer/sk_app/WindowContext.cpp
@@ -43,7 +43,7 @@
             fWidth, fHeight,
             fDisplayParams.fColorType,
             kPremul_SkAlphaType,
-            forceSRGB ? SkColorSpace::MakeSRGB()
+            forceSRGB ? SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named)
                       : fDisplayParams.fColorSpace
         );
         if (this->isGpuContext()) {
@@ -54,7 +54,7 @@
         }
     } else {
         sk_sp<SkColorSpace> colorSpace = GrPixelConfigIsSRGB(rtDesc->fConfig)
-            ? SkColorSpace::MakeSRGB() : nullptr;
+            ? SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named) : nullptr;
         return SkSurface::MakeFromBackendRenderTarget(fContext, *rtDesc, colorSpace,
                                                       &fSurfaceProps);
     }
diff --git a/tools/viewer/sk_app/android/GLWindowContext_android.cpp b/tools/viewer/sk_app/android/GLWindowContext_android.cpp
index 20a7631..9f68396 100644
--- a/tools/viewer/sk_app/android/GLWindowContext_android.cpp
+++ b/tools/viewer/sk_app/android/GLWindowContext_android.cpp
@@ -102,7 +102,7 @@
         EGL_NONE,
     };
     const EGLint* windowAttribs = nullptr;
-    auto srgbColorSpace = SkColorSpace::MakeSRGB();
+    auto srgbColorSpace = SkColorSpace::MakeNamed(SkColorSpace::kSRGB_Named);
     if (srgbColorSpace == fDisplayParams.fColorSpace && majorVersion == 1 && minorVersion >= 2) {
         windowAttribs = srgbWindowAttribs;
     }