Revert "Reland "Test mac system font variations.""

This reverts commit ba55be671d57cb94bb300cf925714be562976dde.

Reason for revert: G3 roll

(08:59:24) ERROR: third_party/skia/HEAD/BUILD:926:10: Compiling third_party/skia/HEAD/tests/TypefaceMacTest.cpp failed: (Exit 1) driver_is_not_gcc failed: error executing command third_party/crosstool/v18/stable/toolchain/bin/driver_is_not_gcc '-frandom-seed=blaze-out/k8-fastbuild/bin/third_party/skia/HEAD/_objs/dm/TypefaceMacTest.pic.o' -DSK_USE_FREETYPE_EMBOLDEN ... (remaining 383 argument(s) skipped).  [forge_remote_host=ixog19]
third_party/skia/HEAD/tests/TypefaceMacTest.cpp:31:45: error: unknown type name 'CTFontRef'
    auto makeSystemFont = [](float size) -> CTFontRef {
                                            ^
third_party/skia/HEAD/tests/TypefaceMacTest.cpp:33:46: error: use of undeclared identifier 'kCTFontUIFontSystem'
        return CTFontCreateUIFontForLanguage(kCTFontUIFontSystem, size, nullptr);
                                             ^
2 errors generated.

Original change's description:
> Reland "Test mac system font variations."
>
> This reverts commit 4c0b9b90d63a155a7137dd1ebe08f74222051fb6.
>
> Reason for revert: Work around broken -Wrange-loop-analysis
>
> Original change's description:
> > Revert "Test mac system font variations."
> >
> > This reverts commit a612dc77d75fda3c9d7fb26ce3e2cd916e8c76cb.
> >
> > Reason for revert: Breaking iOS builds.
> >
> > Original change's description:
> > > Test mac system font variations.
> > >
> > > On macOS system fonts are special and sometimes have different behavior
> > > from fonts generated from data. Add a test which exercises several
> > > expectations about changing the variation on the system ui font.
> > >
> > > Bug: skia:10968
> > > Change-Id: Ia10dfbf7f4f0ff099f9bfebf95481c95c7d3715f
> > > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372218
> > > Commit-Queue: Ben Wagner <bungeman@google.com>
> > > Reviewed-by: Herb Derby <herb@google.com>
> >
> > TBR=bungeman@google.com,herb@google.com,drott@google.com
> >
> > Change-Id: Iccc05f25d827ab85c507b5f3bde936561349e2b8
> > No-Presubmit: true
> > No-Tree-Checks: true
> > No-Try: true
> > Bug: skia:10968
> > Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372678
> > Reviewed-by: Jim Van Verth <jvanverth@google.com>
> > Commit-Queue: Jim Van Verth <jvanverth@google.com>
>
> # Not skipping CQ checks because this is a reland.
>
> Bug: skia:10968
> Change-Id: Ifddc6c5ada335d97f7796df7f6ea10577f6bc252
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/372776
> Commit-Queue: Ben Wagner <bungeman@google.com>
> Reviewed-by: Ben Wagner <bungeman@google.com>

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: skia:10968
Change-Id: Ia5ff4ff827e3f79ff17b4d99458ffb45b7c36c58
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/373277
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 792e832..cf4f350 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -492,7 +492,6 @@
     "src/ports/SkTypeface_mac_ct.cpp",
     "src/ports/SkTypeface_mac_ct.h",
   ]
-  sources_for_tests = [ "tests/TypefaceMacTest.cpp" ]
 
   if (is_mac) {
     frameworks = [
@@ -1965,7 +1964,6 @@
       ":flags",
       ":fontmgr_android_tests",
       ":fontmgr_fontconfig_tests",
-      ":fontmgr_mac_ct_tests",
       ":skia",
       ":test",
       ":tool_utils",
diff --git a/tests/TypefaceMacTest.cpp b/tests/TypefaceMacTest.cpp
deleted file mode 100644
index 5dda168..0000000
--- a/tests/TypefaceMacTest.cpp
+++ /dev/null
@@ -1,183 +0,0 @@
-/*
- * Copyright 2021 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "include/core/SkFontMgr.h"
-#include "include/core/SkRefCnt.h"
-#include "include/core/SkTypeface.h"
-#include "include/ports/SkTypeface_mac.h"
-#include "src/core/SkZip.h"
-#include "tests/Test.h"
-
-#include <stdarg.h>
-#include <string>
-#include <vector>
-
-#if 0
-static void SkMaybeDebugf(const char format[], ...) {
-    va_list args;
-    va_start(args, format);
-    vprintf(format, args);
-    va_end(args);
-}
-#else
-static void SkMaybeDebugf(const char format[], ...) { }
-#endif
-
-DEF_TEST(TypefaceMacVariation, reporter) {
-    auto makeSystemFont = [](float size) -> CTFontRef {
-        // kCTFontUIFontSystem, kCTFontUIFontMessage
-        return CTFontCreateUIFontForLanguage(kCTFontUIFontSystem, size, nullptr);
-    };
-
-    auto tagToString = [](SkFourByteTag tag) -> std::string {
-      char buffer[5];
-      buffer[0] = (tag & 0xff000000) >> 24;
-      buffer[1] = (tag & 0xff0000) >> 16;
-      buffer[2] = (tag & 0xff00) >> 8;
-      buffer[3] = tag & 0xff;
-      buffer[4] = 0;
-      return std::string(buffer);
-    };
-
-    // This typeface has the issue.
-    sk_sp<SkTypeface> typeface(SkMakeTypefaceFromCTFont(makeSystemFont(30)));
-
-    // Since MakeFromFile creates at default size 12, these two are more comparable.
-    // The first one has the issue and the second does not.
-    //typeface = SkMakeTypefaceFromCTFont(makeSystemFont(12));
-    //typeface = SkTypeface::MakeFromFile("/System/Library/Fonts/SFNS.ttf");
-
-    // Setting the initila opsz <= min, the reported wght axis is strange, but draws the same?
-    //typeface = SkMakeTypefaceFromCTFont(makeSystemFont(17));
-    //typeface = SkMakeTypefaceFromCTFont(makeSystemFont(17.01));
-
-    // Setting the initial opsz >= max, the requested variation doesn't take effect?
-    //typeface = SkMakeTypefaceFromCTFont(makeSystemFont(95.9));
-    //typeface = SkMakeTypefaceFromCTFont(makeSystemFont(96));
-
-    if (!typeface) {
-        REPORTER_ASSERT(reporter, typeface);
-        return;
-    }
-    using Coordinate = SkFontArguments::VariationPosition::Coordinate;
-    using Axis = SkFontParameters::Variation::Axis;
-
-    const int originalPositionCount = typeface->getVariationDesignPosition(nullptr, 0);
-    std::vector<Coordinate> originalPosition(originalPositionCount);
-    const int retrievedOriginalPositionCount =
-        typeface->getVariationDesignPosition(originalPosition.data(), originalPosition.size());
-    if (!(retrievedOriginalPositionCount == originalPositionCount)) {
-        REPORTER_ASSERT(reporter, retrievedOriginalPositionCount == originalPositionCount);
-        return;
-    }
-
-    constexpr SkFourByteTag kGRADTag = SkSetFourByteTag('G', 'R', 'A', 'D');
-    constexpr SkFourByteTag kWghtTag = SkSetFourByteTag('w', 'g', 'h', 't');
-    constexpr SkFourByteTag kWdthTag = SkSetFourByteTag('w', 'd', 't', 'h');
-    constexpr SkFourByteTag kOpszTag = SkSetFourByteTag('o', 'p', 's', 'z');
-
-    SkMaybeDebugf("Original: ");
-    for (auto& originalCoordinate : originalPosition) {
-        SkMaybeDebugf("(%s: %f) ", tagToString(originalCoordinate.axis).c_str(),
-                                   originalCoordinate.value);
-    }
-    SkMaybeDebugf("\n\n");
-
-    const int originalAxisCount = typeface->getVariationDesignParameters(nullptr, 0);
-    std::vector<Axis> originalAxes(originalAxisCount);
-    const int returnedOriginalAxisCount =
-        typeface->getVariationDesignParameters(originalAxes.data(), originalAxes.size());
-    if (!(returnedOriginalAxisCount == originalAxisCount)) {
-        REPORTER_ASSERT(reporter, returnedOriginalAxisCount == originalAxisCount);
-        return;
-    }
-
-    for (bool omitOpsz : {false, true}) {
-    for (SkFourByteTag axisToBump : { 0u, kOpszTag, kWdthTag, kGRADTag }) {
-    for (float testCoordinate : {100, 300, 400, 500, 700, 900}) {
-        std::vector<Coordinate> expectedPosition;
-        std::vector<Coordinate> requestPosition;
-        SkMaybeDebugf("Request : ");
-        for (auto& originalCoordinate : originalPosition) {
-            float requestValue = originalCoordinate.value;
-            if (originalCoordinate.axis == kOpszTag && omitOpsz) {
-                SkMaybeDebugf("#%s: %f# ", tagToString(originalCoordinate.axis).c_str(),
-                                           requestValue);
-            } else {
-                if (originalCoordinate.axis == axisToBump) {
-                    // CoreText floats for the variation coordinates have limited precision.
-                    // 'opsz' sems to have more precision since it is set somewhat independently.
-                    //requestValue = nextafter(requestValue, HUGE_VALF); // Does not work.
-                    requestValue += requestValue / 1024.0f; // Expect at least 10 bits.
-                }
-                if (originalCoordinate.axis == kWghtTag) {
-                    requestValue = testCoordinate;
-                }
-                SkMaybeDebugf("(%s: %f) ", tagToString(originalCoordinate.axis).c_str(),
-                                           requestValue);
-                requestPosition.push_back({originalCoordinate.axis, requestValue});
-            }
-
-            float expectedValue = requestValue;
-            for (auto& originalAxis : originalAxes) {
-                if (originalAxis.tag == originalCoordinate.axis) {
-                    expectedValue = std::min(expectedValue, originalAxis.max);
-                    expectedValue = std::max(expectedValue, originalAxis.min);
-                }
-            }
-            expectedPosition.push_back({originalCoordinate.axis, expectedValue});
-        }
-        SkMaybeDebugf("\n");
-
-        SkMaybeDebugf("Expected: ");
-        for (auto& expectedCoordinate : expectedPosition) {
-             SkMaybeDebugf("(%s: %f) ", tagToString(expectedCoordinate.axis).c_str(),
-                                        expectedCoordinate.value);
-        }
-        SkMaybeDebugf("\n");
-
-        SkFontArguments::VariationPosition variationPosition =
-            { requestPosition.data(), (int)requestPosition.size() };
-        sk_sp<SkTypeface> cloneTypeface(
-            typeface->makeClone(SkFontArguments().setVariationDesignPosition(variationPosition)));
-
-        const int cloneAxisCount = cloneTypeface->getVariationDesignPosition(nullptr, 0);
-        std::vector<Coordinate> clonePosition(cloneAxisCount);
-        const int retrievedCloneAxisCount =
-            cloneTypeface->getVariationDesignPosition(clonePosition.data(), clonePosition.size());
-        if (!(retrievedCloneAxisCount == cloneAxisCount)) {
-            REPORTER_ASSERT(reporter, retrievedCloneAxisCount == cloneAxisCount);
-            continue;
-        }
-
-        SkMaybeDebugf("Result  : ");
-        for (auto& cloneCoordinate : clonePosition) {
-             SkMaybeDebugf("(%s: %f) ", tagToString(cloneCoordinate.axis).c_str(),
-                                        cloneCoordinate.value);
-        }
-        SkMaybeDebugf("\n");
-
-        if (clonePosition.size() != expectedPosition.size()) {
-            REPORTER_ASSERT(reporter, clonePosition.size() == expectedPosition.size());
-            continue;
-        }
-
-        auto compareCoordinate = [](const Coordinate& a, const Coordinate& b) -> bool {
-            return a.axis < b.axis;
-        };
-        std::sort(clonePosition.begin(), clonePosition.end(), compareCoordinate);
-        std::sort(expectedPosition.begin(), expectedPosition.end(), compareCoordinate);
-        for (const auto&& [clone, expected] : SkMakeZip(clonePosition, expectedPosition)) {
-            REPORTER_ASSERT(reporter, clone.axis == expected.axis);
-            REPORTER_ASSERT(reporter, clone.value == expected.value);
-        }
-
-        SkMaybeDebugf("\n");
-    }
-    }
-    }
-}