Refactored SkColorSpace and added in a Lab PCS GM

tests/TestConfigParsing.cpp

Index: tests/TestConfigParsing.cpp
diff --git a/tests/TestConfigParsing.cpp b/tests/TestConfigParsing.cpp
index 8435b99ce56153a02e85c3a9fe9817a4e33fbd93..d06396826d5dcf87033653c40c2bc00da75a3be4 100644
--- a/tests/TestConfigParsing.cpp
+++ b/tests/TestConfigParsing.cpp
@@ -125,15 +125,21 @@ DEF_TEST(ParseConfigs_DefaultConfigs, reporter) {
     REPORTER_ASSERT(reporter, configs[25]->asConfigGpu()->getColorType() == kRGBA_F16_SkColorType);
     REPORTER_ASSERT(reporter, configs[25]->asConfigGpu()->getColorSpace());
     REPORTER_ASSERT(reporter, configs[25]->asConfigGpu()->getColorSpace()->gammaIsLinear());
-    REPORTER_ASSERT(reporter, as_CSB(configs[25]->asConfigGpu()->getColorSpace())->toXYZD50() ==
-                              as_CSB(srgbColorSpace)->toXYZD50());
+    const SkMatrix44* srgbXYZ = as_CSB(srgbColorSpace)->requestToXYZD50();
+    SkASSERT(srgbXYZ);
+    const SkMatrix44* config25XYZ =
+            as_CSB(configs[25]->asConfigGpu()->getColorSpace())->requestToXYZD50();
+    SkASSERT(config25XYZ);
+    REPORTER_ASSERT(reporter, *config25XYZ == *srgbXYZ);
     REPORTER_ASSERT(reporter, configs[26]->asConfigGpu()->getColorType() == kRGBA_8888_SkColorType);
     REPORTER_ASSERT(reporter, configs[26]->asConfigGpu()->getColorSpace() == srgbColorSpace.get());
     REPORTER_ASSERT(reporter, configs[41]->asConfigGpu()->getColorType() == kRGBA_F16_SkColorType);
     REPORTER_ASSERT(reporter, configs[41]->asConfigGpu()->getColorSpace());
     REPORTER_ASSERT(reporter, configs[41]->asConfigGpu()->getColorSpace()->gammaIsLinear());
-    REPORTER_ASSERT(reporter, as_CSB(configs[41]->asConfigGpu()->getColorSpace())->toXYZD50() !=
-                              as_CSB(srgbColorSpace)->toXYZD50());
+    const SkMatrix44* config41XYZ =
+            as_CSB(configs[41]->asConfigGpu()->getColorSpace())->requestToXYZD50();
+    SkASSERT(config41XYZ);
+    REPORTER_ASSERT(reporter, *config41XYZ != *srgbXYZ);
     REPORTER_ASSERT(reporter, configs[33]->asConfigGpu()->getContextType() ==
                               GrContextFactory::kGL_ContextType);
     REPORTER_ASSERT(reporter, configs[33]->asConfigGpu()->getUseInstanced());