Reland "remove dead code around SK_SUPPORT_LEGACY_FONT_FLAGS"

This reverts commit c41a41d67e585ce3beee3934864a56a2d841386c.

Reason for revert: hmmm, this might still work in Fuchsia...

Original change's description:
> Revert "remove dead code around SK_SUPPORT_LEGACY_FONT_FLAGS"
> 
> This reverts commit 3b155a77c3704c3f3c5b741d60990e5ee959b261.
> 
> Reason for revert: breaks fuchsia (needs to roll newer flutter)
> 
> Original change's description:
> > remove dead code around SK_SUPPORT_LEGACY_FONT_FLAGS
> > 
> > Bug: skia:
> > Change-Id: I5a36e6827610c2a429e2f8b36adf432b95993c54
> > Reviewed-on: https://skia-review.googlesource.com/c/171529
> > Reviewed-by: Mike Reed <reed@google.com>
> > Commit-Queue: Mike Reed <reed@google.com>
> 
> TBR=reed@google.com
> 
> Change-Id: I37bfab86e4a4243ddd94255aa0b126414bd9e835
> No-Presubmit: true
> No-Tree-Checks: true
> No-Try: true
> Bug: skia:
> Reviewed-on: https://skia-review.googlesource.com/c/171536
> Reviewed-by: Mike Reed <reed@google.com>
> Commit-Queue: Mike Reed <reed@google.com>

TBR=reed@google.com

Change-Id: I12183ecfb5e17b8919afbce7b42dad2064ee93b3
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: skia:
Reviewed-on: https://skia-review.googlesource.com/c/171538
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
diff --git a/include/core/SkFont.h b/include/core/SkFont.h
index a93c42c..58fb6d9 100644
--- a/include/core/SkFont.h
+++ b/include/core/SkFont.h
@@ -18,29 +18,6 @@
 
 class SK_API SkFont {
 public:
-#ifdef SK_SUPPORT_LEGACY_FONT_FLAGS
-    enum Flags {
-        /**
-         *  Use the system's automatic hinting mechanism to hint the typeface.
-         */
-        kForceAutoHinting_Flag      = 1 << 0,
-
-        /**
-         *  If the typeface contains explicit bitmaps for hinting, use them.
-         *  If both bytecode and auto hints are also specified, attempt to use the bitmaps first;
-         *  if that fails (e.g. there are no bitmaps), then attempt to bytecode or autohint.
-         */
-        kEmbeddedBitmaps_Flag       = 1 << 1,
-
-        kSubpixel_Flag              = 1 << 2,
-        kLinearMetrics_Flag         = 1 << 3,
-        kEmbolden_Flag              = 1 << 4,
-
-        kDEPRECATED_Antialias_Flag  = 1 << 5,
-        kDEPRECATED_LCDRender_Flag  = 1 << 6,
-    };
-#endif
-
     enum class Edging {
         kAlias,
         kAntiAlias,
@@ -57,10 +34,6 @@
     SkFont();
     SkFont(sk_sp<SkTypeface>, SkScalar size);
     SkFont(sk_sp<SkTypeface>, SkScalar size, SkScalar scaleX, SkScalar skewX);
-#ifdef SK_SUPPORT_LEGACY_FONT_FLAGS
-    SkFont(sk_sp<SkTypeface>, SkScalar size, uint32_t flags);
-    SkFont(sk_sp<SkTypeface>, SkScalar size, SkScalar scaleX, SkScalar skewX, uint32_t flags);
-#endif
 
     bool isForceAutoHinting() const { return SkToBool(fFlags & kForceAutoHinting_PrivFlag); }
     bool isEmbeddedBitmaps() const { return SkToBool(fFlags & kEmbeddedBitmaps_PrivFlag); }
@@ -94,21 +67,6 @@
      */
     SkFont makeWithSize(SkScalar size) const;
 
-#ifdef SK_SUPPORT_LEGACY_FONT_FLAGS
-    bool DEPRECATED_isAntiAlias() const { return SkToBool(fFlags & kDEPRECATED_Antialias_Flag); }
-    bool DEPRECATED_isLCDRender() const { return SkToBool(fFlags & kDEPRECATED_LCDRender_Flag); }
-
-    void DEPRECATED_setAntiAlias(bool);
-    void DEPRECATED_setLCDRender(bool);
-
-    /**
-     *  Return a font with the same attributes of this font, but with the flags.
-     */
-    SkFont makeWithFlags(uint32_t newFlags) const;
-    uint32_t    getFlags() const { return fFlags; }
-    void setFlags(uint32_t);
-#endif
-
     SkTypeface* getTypeface() const { return fTypeface.get(); }
     SkScalar    getSize() const { return fSize; }
     SkScalar    getScaleX() const { return fScaleX; }
diff --git a/src/core/SkFont.cpp b/src/core/SkFont.cpp
index e35de5c..78f4f9a 100644
--- a/src/core/SkFont.cpp
+++ b/src/core/SkFont.cpp
@@ -40,18 +40,6 @@
 
 SkFont::SkFont() : SkFont(nullptr, kDefault_Size) {}
 
-#ifdef SK_SUPPORT_LEGACY_FONT_FLAGS
-SkFont::SkFont(sk_sp<SkTypeface> face, SkScalar size, SkScalar scaleX, SkScalar skewX,
-               uint32_t legacy_flags) : SkFont(std::move(face), size, scaleX, skewX) {
-    this->setFlags(legacy_flags);
-}
-
-SkFont::SkFont(sk_sp<SkTypeface> face, SkScalar size, uint32_t legacy_flags)
-    : SkFont(std::move(face), size) {
-    this->setFlags(legacy_flags);
-}
-#endif
-
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 static inline uint32_t set_clear_mask(uint32_t bits, bool cond, uint32_t mask) {
@@ -74,42 +62,6 @@
     fFlags = set_clear_mask(fFlags, predicate, kEmbolden_PrivFlag);
 }
 
-#ifdef SK_SUPPORT_LEGACY_FONT_FLAGS
-void SkFont::DEPRECATED_setAntiAlias(bool doAA) {
-    if (!doAA) {
-        this->setEdging(Edging::kAlias);
-    } else {
-        if (this->getEdging() == Edging::kAlias) {
-            this->setEdging(Edging::kAntiAlias);
-        }
-        // else leave the current fEdging as is
-    }
-}
-
-void SkFont::DEPRECATED_setLCDRender(bool doLCD) {
-    if (doLCD) {
-        this->setEdging(Edging::kSubpixelAntiAlias);
-    } else {
-        if (this->getEdging() == Edging::kSubpixelAntiAlias) {
-            this->setEdging(Edging::kAntiAlias);
-        }
-        // else leave the current fEdging as is
-    }
-}
-
-void SkFont::setFlags(uint32_t legacy_flags) {
-    fFlags = legacy_flags & 0x1F;   // the first 5 flags are fine
-    this->DEPRECATED_setAntiAlias(SkToBool(legacy_flags & kDEPRECATED_Antialias_Flag));
-    this->DEPRECATED_setLCDRender(SkToBool(legacy_flags & kDEPRECATED_LCDRender_Flag));
-}
-
-SkFont SkFont::makeWithFlags(uint32_t newFlags) const {
-    SkFont font = *this;
-    font.setFlags(newFlags);
-    return font;
-}
-#endif
-
 void SkFont::setEdging(Edging e) {
     fEdging = SkToU8(e);
 }