Revert of Checking for valid colorType, alphaType, colorSpace in SkCodec (patchset #2 id:100001 of https://codereview.chromium.org/2319293003/ )

Reason for revert:
Broken perf bots

Original issue's description:
> Checking for valid colorType, alphaType, colorSpace in SkCodec
>
> * Refactor to share code between SkPngCodec and SkWebpCodec
> * Didn't end up sharing with SkJpegCodec but did refactor
>   that code a bit
> * Disallow conversions to F16 with non-linear color spaces
> * Fail to decode if we fail to create a SkColorSpaceXform
>   (should be an assert soon).  We used to fallback on a
>   legacy decode if we failed to create the transform.
> * A bunch of name changes
>
> BUG=skia:
> GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2319293003
>
> Committed: https://skia.googlesource.com/skia/+/7a9900d6d34e437bb24beb5524a1f6488ae138c9

TBR=scroggo@google.com,brianosman@google.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review-Url: https://codereview.chromium.org/2328663002

1 files changed, 0 insertions, 30 deletions

diff --git a/tests/CodecTest.cpp b/tests/CodecTest.cpp
index b01750d410..9c60be4b6b 100644
--- a/tests/CodecTest.cpp
+++ b/tests/CodecTest.cpp
@@ -1120,33 +1120,3 @@ DEF_TEST(Codec_PngRoundTrip, r) {
     REPORTER_ASSERT(r, SkCodec::kSuccess == result);
     check_round_trip(r, bm2);
 }
-
-static void test_conversion_possible(skiatest::Reporter* r, const char* path,
-                                     bool testScanlineDecoder) {
-    SkAutoTDelete<SkStream> stream(resource(path));
-    SkAutoTDelete<SkCodec> codec(SkCodec::NewFromStream(stream.release()));
-    SkImageInfo infoF16 = codec->getInfo().makeColorType(kRGBA_F16_SkColorType);
-
-    SkBitmap bm;
-    bm.allocPixels(infoF16);
-    SkCodec::Result result = codec->getPixels(infoF16, bm.getPixels(), bm.rowBytes());
-    REPORTER_ASSERT(r, SkCodec::kInvalidConversion == result);
-    if (testScanlineDecoder) {
-        result = codec->startScanlineDecode(infoF16);
-        REPORTER_ASSERT(r, SkCodec::kInvalidConversion == result);
-    }
-
-    infoF16 = infoF16.makeColorSpace(infoF16.colorSpace()->makeLinearGamma());
-    result = codec->getPixels(infoF16, bm.getPixels(), bm.rowBytes());
-    REPORTER_ASSERT(r, SkCodec::kSuccess == result);
-    if (testScanlineDecoder) {
-        result = codec->startScanlineDecode(infoF16);
-        REPORTER_ASSERT(r, SkCodec::kSuccess == result);
-    }
-}
-
-DEF_TEST(Codec_F16ConversionPossible, r) {
-    test_conversion_possible(r, "color_wheel.webp", false);
-    test_conversion_possible(r, "mandrill_512_q075.jpg", true);
-    test_conversion_possible(r, "yellow_rose.png", true);
-}