Add isSingleComponent bool to getConstantColorComponent

tests/GpuColorFilterTest.cpp

Index: tests/GpuColorFilterTest.cpp
diff --git a/tests/GpuColorFilterTest.cpp b/tests/GpuColorFilterTest.cpp
index 202756b0e6926e14955bbc8563f5d5151f5829f4..a61fe0b545f0ba41de7d14c1ff67f8ffe9d4f5e4 100644
--- a/tests/GpuColorFilterTest.cpp
+++ b/tests/GpuColorFilterTest.cpp
@@ -99,12 +99,14 @@ static void test_getConstantColorComponents(skiatest::Reporter* reporter, GrCont
         const GetConstantComponentTestCase& test = filterTests[i];
         SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(test.filterColor, test.filterMode));
         SkAutoTUnref<GrFragmentProcessor> effect(cf->asFragmentProcessor(grContext));
-        GrColor color = test.inputColor;
-        uint32_t components = test.inputComponents;
-        effect->getConstantColorComponents(&color, &components);
-
-        REPORTER_ASSERT(reporter, filterColor(color, components) == test.outputColor);
-        REPORTER_ASSERT(reporter, test.outputComponents == components);
+        GrProcessor::InvariantOutput inout;
+        inout.fColor = test.inputColor;
+        inout.fValidFlags = test.inputComponents;
+        inout.fIsSingleComponent = false;
+        effect->computeInvariantOutput(&inout);
+
+        REPORTER_ASSERT(reporter, filterColor(inout.fColor, inout.fValidFlags) == test.outputColor);
+        REPORTER_ASSERT(reporter, test.outputComponents == inout.fValidFlags);
     }
 }