[PDF] Fix font embedding restrictions.

Stop using restricted font outlines and honor don't subset restriction.

Resubmit of r12600.

R=halcanary@google.com, bungeman@google.com, reed@google.com

Author: vandebo@chromium.org

Review URL: https://codereview.chromium.org/334443002

8 files changed, 187 insertions, 61 deletions

diff --git a/src/core/SkTypeface.cpp b/src/core/SkTypeface.cpp
index fd2803b207..48be651fd6 100644
--- a/src/core/SkTypeface.cpp
+++ b/src/core/SkTypeface.cpp
@@ -6,9 +6,11 @@
  */
 
 #include "SkAdvancedTypefaceMetrics.h"
+#include "SkEndian.h"
 #include "SkFontDescriptor.h"
 #include "SkFontHost.h"
 #include "SkLazyPtr.h"
+#include "SkOTTable_OS_2.h"
 #include "SkStream.h"
 #include "SkTypeface.h"
 
@@ -269,7 +271,28 @@ SkAdvancedTypefaceMetrics* SkTypeface::getAdvancedTypefaceMetrics(
                                 SkAdvancedTypefaceMetrics::PerGlyphInfo info,
                                 const uint32_t* glyphIDs,
                                 uint32_t glyphIDsCount) const {
-    return this->onGetAdvancedTypefaceMetrics(info, glyphIDs, glyphIDsCount);
+    SkAdvancedTypefaceMetrics* result =
+            this->onGetAdvancedTypefaceMetrics(info, glyphIDs, glyphIDsCount);
+    if (result && result->fType == SkAdvancedTypefaceMetrics::kTrueType_Font) {
+        struct SkOTTableOS2 os2table;
+        if (this->getTableData(SkTEndian_SwapBE32(SkOTTableOS2::TAG), 0,
+                               sizeof(os2table), &os2table) > 0) {
+            if (os2table.version.v2.fsType.field.Bitmap ||
+                (os2table.version.v2.fsType.field.Restricted &&
+                 !(os2table.version.v2.fsType.field.PreviewPrint ||
+                   os2table.version.v2.fsType.field.Editable))) {
+                result->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                        result->fFlags,
+                        SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag);
+            }
+            if (os2table.version.v2.fsType.field.NoSubsetting) {
+                result->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                        result->fFlags,
+                        SkAdvancedTypefaceMetrics::kNotSubsettable_FontFlag);
+            }
+        }
+    }
+    return result;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
diff --git a/src/pdf/SkPDFDocument.cpp b/src/pdf/SkPDFDocument.cpp
index 0633d30828..79699a0292 100644
--- a/src/pdf/SkPDFDocument.cpp
+++ b/src/pdf/SkPDFDocument.cpp
@@ -258,11 +258,13 @@ bool SkPDFDocument::appendPage(SkPDFDevice* pdfDevice) {
     return true;
 }
 
+// Deprecated.
 void SkPDFDocument::getCountOfFontTypes(
-        int counts[SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1]) const {
+        int counts[SkAdvancedTypefaceMetrics::kOther_Font + 2]) const {
     sk_bzero(counts, sizeof(int) *
-                     (SkAdvancedTypefaceMetrics::kNotEmbeddable_Font + 1));
+                     (SkAdvancedTypefaceMetrics::kOther_Font + 2));
     SkTDArray<SkFontID> seenFonts;
+    int notEmbeddable = 0;
 
     for (int pageNumber = 0; pageNumber < fPages.count(); pageNumber++) {
         const SkTDArray<SkPDFFont*>& fontResources =
@@ -272,9 +274,49 @@ void SkPDFDocument::getCountOfFontTypes(
             if (seenFonts.find(fontID) == -1) {
                 counts[fontResources[font]->getType()]++;
                 seenFonts.push(fontID);
+                if (!fontResources[font]->canEmbed()) {
+                    notEmbeddable++;
+                }
             }
         }
     }
+    counts[SkAdvancedTypefaceMetrics::kOther_Font + 1] = notEmbeddable;
+}
+
+void SkPDFDocument::getCountOfFontTypes(
+        int counts[SkAdvancedTypefaceMetrics::kOther_Font + 1],
+        int* notSubsettableCount,
+        int* notEmbeddableCount) const {
+    sk_bzero(counts, sizeof(int) *
+                     (SkAdvancedTypefaceMetrics::kOther_Font + 1));
+    SkTDArray<SkFontID> seenFonts;
+    int notSubsettable = 0;
+    int notEmbeddable = 0;
+
+    for (int pageNumber = 0; pageNumber < fPages.count(); pageNumber++) {
+        const SkTDArray<SkPDFFont*>& fontResources =
+                fPages[pageNumber]->getFontResources();
+        for (int font = 0; font < fontResources.count(); font++) {
+            SkFontID fontID = fontResources[font]->typeface()->uniqueID();
+            if (seenFonts.find(fontID) == -1) {
+                counts[fontResources[font]->getType()]++;
+                seenFonts.push(fontID);
+                if (!fontResources[font]->canSubset()) {
+                    notSubsettable++;
+                }
+                if (!fontResources[font]->canEmbed()) {
+                    notEmbeddable++;
+                }
+            }
+        }
+    }
+    if (notSubsettableCount) {
+        *notSubsettableCount = notSubsettable;
+
+    }
+    if (notEmbeddableCount) {
+        *notEmbeddableCount = notEmbeddable;
+    }
 }
 
 void SkPDFDocument::emitHeader(SkWStream* stream) {
diff --git a/src/pdf/SkPDFFont.cpp b/src/pdf/SkPDFFont.cpp
index 0d41176982..49d383b204 100644
--- a/src/pdf/SkPDFFont.cpp
+++ b/src/pdf/SkPDFFont.cpp
@@ -761,6 +761,24 @@ SkAdvancedTypefaceMetrics::FontType SkPDFFont::getType() {
     return fFontType;
 }
 
+bool SkPDFFont::canEmbed() const {
+    if (!fFontInfo.get()) {
+        SkASSERT(fFontType == SkAdvancedTypefaceMetrics::kOther_Font);
+        return true;
+    }
+    return (fFontInfo->fFlags &
+            SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag) == 0;
+}
+
+bool SkPDFFont::canSubset() const {
+    if (!fFontInfo.get()) {
+        SkASSERT(fFontType == SkAdvancedTypefaceMetrics::kOther_Font);
+        return true;
+    }
+    return (fFontInfo->fFlags &
+            SkAdvancedTypefaceMetrics::kNotSubsettable_FontFlag) == 0;
+}
+
 bool SkPDFFont::hasGlyph(uint16_t id) {
     return (id >= fFirstGlyphID && id <= fLastGlyphID) || id == 0;
 }
@@ -808,7 +826,7 @@ SkPDFFont* SkPDFFont::GetFontResource(SkTypeface* typeface, uint16_t glyphID) {
 
         // This only is to catch callers who pass invalid glyph ids.
         // If glyph id is invalid, then we will create duplicate entries
-        // for True Type fonts.
+        // for TrueType fonts.
         SkAdvancedTypefaceMetrics::FontType fontType =
             fontMetrics.get() ? fontMetrics.get()->fType :
                                 SkAdvancedTypefaceMetrics::kOther_Font;
@@ -888,9 +906,8 @@ SkPDFFont::SkPDFFont(SkAdvancedTypefaceMetrics* info, SkTypeface* typeface,
           fLastGlyphID(info ? info->fLastGlyphID : 0),
           fFontInfo(SkSafeRef(info)),
           fDescriptor(SkSafeRef(relatedFontDescriptor)) {
-    if (info == NULL) {
-        fFontType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
-    } else if (info->fMultiMaster) {
+    if (info == NULL ||
+            info->fFlags & SkAdvancedTypefaceMetrics::kMultiMaster_FontFlag) {
         fFontType = SkAdvancedTypefaceMetrics::kOther_Font;
     } else {
         fFontType = info->fType;
@@ -902,9 +919,10 @@ SkPDFFont* SkPDFFont::Create(SkAdvancedTypefaceMetrics* info,
                              SkTypeface* typeface, uint16_t glyphID,
                              SkPDFDict* relatedFontDescriptor) {
     SkAdvancedTypefaceMetrics::FontType type =
-        info ? info->fType : SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
+        info ? info->fType : SkAdvancedTypefaceMetrics::kOther_Font;
 
-    if (info && info->fMultiMaster) {
+    if (info &&
+            (info->fFlags & SkAdvancedTypefaceMetrics::kMultiMaster_FontFlag)) {
         NOT_IMPLEMENTED(true, true);
         return new SkPDFType3Font(info,
                                   typeface,
@@ -923,8 +941,7 @@ SkPDFFont* SkPDFFont::Create(SkAdvancedTypefaceMetrics* info,
     }
 
     SkASSERT(type == SkAdvancedTypefaceMetrics::kCFF_Font ||
-             type == SkAdvancedTypefaceMetrics::kOther_Font ||
-             type == SkAdvancedTypefaceMetrics::kNotEmbeddable_Font);
+             type == SkAdvancedTypefaceMetrics::kOther_Font);
 
     return new SkPDFType3Font(info, typeface, glyphID);
 }
@@ -1052,11 +1069,17 @@ SkPDFType0Font::SkPDFType0Font(SkAdvancedTypefaceMetrics* info,
                                SkTypeface* typeface)
         : SkPDFFont(info, typeface, NULL) {
     SkDEBUGCODE(fPopulated = false);
+    if (!canSubset()) {
+        populate(NULL);
+    }
 }
 
 SkPDFType0Font::~SkPDFType0Font() {}
 
 SkPDFFont* SkPDFType0Font::getFontSubset(const SkPDFGlyphSet* subset) {
+    if (!canSubset()) {
+        return NULL;
+    }
     SkPDFType0Font* newSubset = new SkPDFType0Font(fontInfo(), typeface());
     newSubset->populate(subset);
     return newSubset;
@@ -1105,19 +1128,34 @@ bool SkPDFCIDFont::addFontDescriptor(int16_t defaultWidth,
     SkAutoTUnref<SkPDFDict> descriptor(new SkPDFDict("FontDescriptor"));
     setFontDescriptor(descriptor.get());
     addResource(descriptor.get());
+    insert("FontDescriptor", new SkPDFObjRef(descriptor.get()))->unref();
+    if (!addCommonFontDescriptorEntries(defaultWidth)) {
+        return false;
+    }
+    if (!canEmbed()) {
+        return true;
+    }
 
     switch (getType()) {
         case SkAdvancedTypefaceMetrics::kTrueType_Font: {
-            SkASSERT(subset);
-            // Font subsetting
-            SkPDFStream* rawStream = NULL;
-            size_t fontSize = get_subset_font_stream(fontInfo()->fFontName.c_str(),
-                                                     typeface(),
-                                                     *subset,
-                                                     &rawStream);
+            SkAutoTUnref<SkPDFStream> fontStream;
+            size_t fontSize = 0;
+            if (canSubset()) {
+                SkPDFStream* rawStream = NULL;
+                fontSize = get_subset_font_stream(fontInfo()->fFontName.c_str(),
+                                                  typeface(),
+                                                  *subset,
+                                                  &rawStream);
+                fontStream.reset(rawStream);
+            } else {
+                int ttcIndex;
+                SkAutoTUnref<SkStream> fontData(
+                        typeface()->openStream(&ttcIndex));
+                fontStream.reset(new SkPDFStream(fontData.get()));
+                fontSize = fontData->getLength();
+            }
             SkASSERT(fontSize);
-            SkASSERT(rawStream);
-            SkAutoTUnref<SkPDFStream> fontStream(rawStream);
+            SkASSERT(fontStream.get());
             addResource(fontStream.get());
 
             fontStream->insertInt("Length1", fontSize);
@@ -1145,9 +1183,7 @@ bool SkPDFCIDFont::addFontDescriptor(int16_t defaultWidth,
         default:
             SkASSERT(false);
     }
-
-    insert("FontDescriptor", new SkPDFObjRef(descriptor.get()))->unref();
-    return addCommonFontDescriptorEntries(defaultWidth);
+    return true;
 }
 
 bool SkPDFCIDFont::populate(const SkPDFGlyphSet* subset) {
@@ -1266,12 +1302,15 @@ bool SkPDFType1Font::addFontDescriptor(int16_t defaultWidth) {
     if (fontData == NULL) {
         return false;
     }
-    SkAutoTUnref<SkPDFStream> fontStream(new SkPDFStream(fontData));
-    addResource(fontStream.get());
-    fontStream->insertInt("Length1", header);
-    fontStream->insertInt("Length2", data);
-    fontStream->insertInt("Length3", trailer);
-    descriptor->insert("FontFile", new SkPDFObjRef(fontStream.get()))->unref();
+    if (canEmbed()) {
+        SkAutoTUnref<SkPDFStream> fontStream(new SkPDFStream(fontData));
+        addResource(fontStream.get());
+        fontStream->insertInt("Length1", header);
+        fontStream->insertInt("Length2", data);
+        fontStream->insertInt("Length3", trailer);
+        descriptor->insert("FontFile",
+                           new SkPDFObjRef(fontStream.get()))->unref();
+    }
 
     addResource(descriptor.get());
     insert("FontDescriptor", new SkPDFObjRef(descriptor.get()))->unref();
diff --git a/src/pdf/SkPDFFont.h b/src/pdf/SkPDFFont.h
index 3a5234d264..058a0422f5 100644
--- a/src/pdf/SkPDFFont.h
+++ b/src/pdf/SkPDFFont.h
@@ -99,6 +99,14 @@ public:
      */
     virtual bool multiByteGlyphs() const = 0;
 
+    /** Returns true if the machine readable licensing bits allow embedding.
+     */
+    bool canEmbed() const;
+
+    /** Returns true if the machine readable licensing bits allow subsetting.
+     */
+    bool canSubset() const;
+
     /** Return true if this font has an encoding for the passed glyph id.
      */
     bool hasGlyph(uint16_t glyphID);
@@ -121,8 +129,7 @@ public:
      *  @param typeface  The typeface to find.
      *  @param glyphID   Specify which section of a large font is of interest.
      */
-    static SkPDFFont* GetFontResource(SkTypeface* typeface,
-                                             uint16_t glyphID);
+    static SkPDFFont* GetFontResource(SkTypeface* typeface, uint16_t glyphID);
 
     /** Subset the font based on usage set. Returns a SkPDFFont instance with
      *  subset.
@@ -188,8 +195,6 @@ private:
     // this will be a subset if the font has more than 255 glyphs.
     uint16_t fFirstGlyphID;
     uint16_t fLastGlyphID;
-    // The font info is only kept around after construction for large
-    // Type1 (non CID) fonts that need multiple "fonts" to access all glyphs.
     SkAutoTUnref<SkAdvancedTypefaceMetrics> fFontInfo;
     SkTDArray<SkPDFObject*> fResources;
     SkAutoTUnref<SkPDFDict> fDescriptor;
diff --git a/src/ports/SkFontHost_FreeType.cpp b/src/ports/SkFontHost_FreeType.cpp
index 4a0afbb593..12edc49d9e 100644
--- a/src/ports/SkFontHost_FreeType.cpp
+++ b/src/ports/SkFontHost_FreeType.cpp
@@ -440,6 +440,20 @@ static bool canEmbed(FT_Face face) {
 #endif
 }
 
+static bool canSubset(FT_Face face) {
+#ifdef FT_FSTYPE_NO_SUBSETTING
+    FT_UShort fsType = FT_Get_FSType_Flags(face);
+    return (fsType & FT_FSTYPE_NO_SUBSETTING) == 0;
+#else
+    // No subset is 0x100.
+    TT_OS2* os2_table;
+    if ((os2_table = (TT_OS2*)FT_Get_Sfnt_Table(face, ft_sfnt_os2)) != NULL) {
+        return (os2_table->fsType & 0x100) == 0;
+    }
+    return false;  // We tried, fail safe.
+#endif
+}
+
 static bool GetLetterCBox(FT_Face face, char letter, FT_BBox* bbox) {
     const FT_UInt glyph_id = FT_Get_Char_Index(face, letter);
     if (!glyph_id)
@@ -525,7 +539,21 @@ SkAdvancedTypefaceMetrics* SkTypeface_FreeType::onGetAdvancedTypefaceMetrics(
 
     SkAdvancedTypefaceMetrics* info = new SkAdvancedTypefaceMetrics;
     info->fFontName.set(FT_Get_Postscript_Name(face));
-    info->fMultiMaster = FT_HAS_MULTIPLE_MASTERS(face);
+    info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag;
+    if (FT_HAS_MULTIPLE_MASTERS(face)) {
+        info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                info->fFlags, SkAdvancedTypefaceMetrics::kMultiMaster_FontFlag);
+    }
+    if (!canEmbed(face)) {
+        info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                info->fFlags,
+                SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag);
+    }
+    if (!canSubset(face)) {
+        info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                info->fFlags,
+                SkAdvancedTypefaceMetrics::kNotSubsettable_FontFlag);
+    }
     info->fLastGlyphID = face->num_glyphs - 1;
     info->fEmSize = 1000;
 
@@ -623,8 +651,7 @@ SkAdvancedTypefaceMetrics* SkTypeface_FreeType::onGetAdvancedTypefaceMetrics(
     info->fBBox = SkIRect::MakeLTRB(face->bbox.xMin, face->bbox.yMax,
                                     face->bbox.xMax, face->bbox.yMin);
 
-    if (!canEmbed(face) || !FT_IS_SCALABLE(face) ||
-            info->fType == SkAdvancedTypefaceMetrics::kOther_Font) {
+    if (!FT_IS_SCALABLE(face)) {
         perGlyphInfo = SkAdvancedTypefaceMetrics::kNo_PerGlyphInfo;
     }
 
@@ -687,9 +714,6 @@ SkAdvancedTypefaceMetrics* SkTypeface_FreeType::onGetAdvancedTypefaceMetrics(
         populate_glyph_to_unicode(face, &(info->fGlyphToUnicode));
     }
 
-    if (!canEmbed(face))
-        info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
-
     return info;
 #endif
 }
diff --git a/src/ports/SkFontHost_mac.cpp b/src/ports/SkFontHost_mac.cpp
index 26d30d726a..e00b87b59b 100755
--- a/src/ports/SkFontHost_mac.cpp
+++ b/src/ports/SkFontHost_mac.cpp
@@ -1544,17 +1544,16 @@ SkAdvancedTypefaceMetrics* SkTypeface_Mac::onGetAdvancedTypefaceMetrics(
         CFStringToSkString(fontName, &info->fFontName);
     }
 
-    info->fMultiMaster = false;
     CFIndex glyphCount = CTFontGetGlyphCount(ctFont);
     info->fLastGlyphID = SkToU16(glyphCount - 1);
     info->fEmSize = CTFontGetUnitsPerEm(ctFont);
+    info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag;
+    info->fStyle = 0;
 
     if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) {
         populate_glyph_to_unicode(ctFont, glyphCount, &info->fGlyphToUnicode);
     }
 
-    info->fStyle = 0;
-
     // If it's not a truetype font, mark it as 'other'. Assume that TrueType
     // fonts always have both glyf and loca tables. At the least, this is what
     // sfntly needs to subset the font. CTFontCopyAttribute() does not always
@@ -1618,10 +1617,7 @@ SkAdvancedTypefaceMetrics* SkTypeface_Mac::onGetAdvancedTypefaceMetrics(
         }
     }
 
-    if (false) { // TODO: haven't figured out how to know if font is embeddable
-        // (information is in the OS/2 table)
-        info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
-    } else if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
+    if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
         if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) {
             skia_advanced_typeface_metrics_utils::appendRange(&info->fGlyphWidths, 0);
             info->fGlyphWidths->fAdvance.append(1, &min_width);
diff --git a/src/ports/SkFontHost_win.cpp b/src/ports/SkFontHost_win.cpp
index 763fc3517b..5a902148bd 100755
--- a/src/ports/SkFontHost_win.cpp
+++ b/src/ports/SkFontHost_win.cpp
@@ -1867,10 +1867,18 @@ SkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics(
 
     info = new SkAdvancedTypefaceMetrics;
     info->fEmSize = otm.otmEMSquare;
-    info->fMultiMaster = false;
     info->fLastGlyphID = SkToU16(glyphCount - 1);
     info->fStyle = 0;
     tchar_to_skstring(lf.lfFaceName, &info->fFontName);
+    info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag;
+    // If bit 1 is set, the font may not be embedded in a document.
+    // If bit 1 is clear, the font can be embedded.
+    // If bit 2 is set, the embedding is read-only.
+    if (otm.otmfsType & 0x1) {
+        info->fFlags = SkTBitOr<SkAdvancedTypefaceMetrics::FontFlags>(
+                info->fFlags,
+                SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag);
+    }
 
     if (perGlyphInfo & SkAdvancedTypefaceMetrics::kToUnicode_PerGlyphInfo) {
         populate_glyph_to_unicode(hdc, glyphCount, &(info->fGlyphToUnicode));
@@ -1931,13 +1939,7 @@ SkAdvancedTypefaceMetrics* LogFontTypeface::onGetAdvancedTypefaceMetrics(
         }
     }
 
-    // If bit 1 is set, the font may not be embedded in a document.
-    // If bit 1 is clear, the font can be embedded.
-    // If bit 2 is set, the embedding is read-only.
-    if (otm.otmfsType & 0x1) {
-        info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
-    } else if (perGlyphInfo &
-               SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
+    if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
         if (info->fStyle & SkAdvancedTypefaceMetrics::kFixedPitch_Style) {
             appendRange(&info->fGlyphWidths, 0);
             info->fGlyphWidths->fAdvance.append(1, &min_width);
diff --git a/src/ports/SkTypeface_win_dw.cpp b/src/ports/SkTypeface_win_dw.cpp
index 9eace8b4a0..6ff8412858 100644
--- a/src/ports/SkTypeface_win_dw.cpp
+++ b/src/ports/SkTypeface_win_dw.cpp
@@ -361,9 +361,9 @@ SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics(
 
     info = new SkAdvancedTypefaceMetrics;
     info->fEmSize = dwfm.designUnitsPerEm;
-    info->fMultiMaster = false;
     info->fLastGlyphID = SkToU16(glyphCount - 1);
     info->fStyle = 0;
+    info->fFlags = SkAdvancedTypefaceMetrics::kEmpty_FontFlag;
 
     // SkAdvancedTypefaceMetrics::fFontName is in theory supposed to be
     // the PostScript name of the font. However, due to the way it is currently
@@ -467,12 +467,7 @@ SkAdvancedTypefaceMetrics* DWriteFontTypeface::onGetAdvancedTypefaceMetrics(
     }
     */
 
-    // If Restricted, the font may not be embedded in a document.
-    // If not Restricted, the font can be embedded.
-    // If PreviewPrint, the embedding is read-only.
-    if (os2Table->version.v0.fsType.field.Restricted) {
-        info->fType = SkAdvancedTypefaceMetrics::kNotEmbeddable_Font;
-    } else if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
+    if (perGlyphInfo & SkAdvancedTypefaceMetrics::kHAdvance_PerGlyphInfo) {
         if (fixedWidth) {
             appendRange(&info->fGlyphWidths, 0);
             int16_t advance;