Add color space xform support to SkJpegCodec (includes F16!)

tests/ColorSpaceXformTest.cpp

Index: tests/ColorSpaceXformTest.cpp
diff --git a/tests/ColorSpaceXformTest.cpp b/tests/ColorSpaceXformTest.cpp
index 23b08ce8aecc9a2a30808422d5f4bf5ab817146b..1e75ee68534cbb6acff1daae791a7f6eb295732d 100644
--- a/tests/ColorSpaceXformTest.cpp
+++ b/tests/ColorSpaceXformTest.cpp
@@ -37,19 +37,19 @@ static void test_identity_xform(skiatest::Reporter* r, const sk_sp<SkGammas>& ga
 
     // Create and perform an identity xform.
     std::unique_ptr<SkColorSpaceXform> xform = ColorSpaceXformTest::CreateIdentityXform(gammas);
-    xform->applyTo8888(dstPixels, srcPixels, width);
+    xform->applyToRGBA(dstPixels, srcPixels, width);
 
     // Since the src->dst matrix is the identity, and the gamma curves match,
     // the pixels should be unchanged.
     for (int i = 0; i < width; i++) {
         REPORTER_ASSERT(r, almost_equal(((srcPixels[i] >>  0) & 0xFF),
-                                        SkGetPackedR32(dstPixels[i])));
+                                        ((dstPixels[i] >>  0) & 0xFF)));
         REPORTER_ASSERT(r, almost_equal(((srcPixels[i] >>  8) & 0xFF),
-                                        SkGetPackedG32(dstPixels[i])));
+                                        ((dstPixels[i] >>  8) & 0xFF)));
         REPORTER_ASSERT(r, almost_equal(((srcPixels[i] >> 16) & 0xFF),
-                                        SkGetPackedB32(dstPixels[i])));
+                                        ((dstPixels[i] >> 16) & 0xFF)));
         REPORTER_ASSERT(r, almost_equal(((srcPixels[i] >> 24) & 0xFF),
-                                        SkGetPackedA32(dstPixels[i])));
+                                        ((dstPixels[i] >> 24) & 0xFF)));
     }
 }