Font variations.

src/core/SkTypeface.cpp

Index: src/core/SkTypeface.cpp
diff --git a/src/core/SkTypeface.cpp b/src/core/SkTypeface.cpp
index 7f79c450502ab76193a21db3d34ba196ea04c462..a9a50aa2d944ff34da5fcb73e8d00e7791127f04 100644
--- a/src/core/SkTypeface.cpp
+++ b/src/core/SkTypeface.cpp
@@ -143,6 +143,11 @@ SkTypeface* SkTypeface::CreateFromStream(SkStreamAsset* stream, int index) {
     return fm->createFromStream(stream, index);
 }
 
+SkTypeface* SkTypeface::CreateFromFontData(SkFontData* data) {
+    SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
+    return fm->createFromFontData(data);
+}
+
 SkTypeface* SkTypeface::CreateFromFile(const char path[], int index) {
     SkAutoTUnref<SkFontMgr> fm(SkFontMgr::RefDefault());
     return fm->createFromFile(path, index);
@@ -153,13 +158,13 @@ SkTypeface* SkTypeface::CreateFromFile(const char path[], int index) {
 void SkTypeface::serialize(SkWStream* wstream) const {
     bool isLocal = false;
     SkFontDescriptor desc(this->style());
+    // This is 'get request', i.e., what do I do to search for this font?
     this->onGetFontDescriptor(&desc, &isLocal);
 
     // Embed font data if it's a local font.
     if (isLocal && !desc.hasFontData()) {
-        int ttcIndex;
-        desc.setFontData(this->onOpenStream(&ttcIndex));
-        desc.setFontIndex(ttcIndex);
+        // This is 'get font', i.e., what do I need to reconstruct this font without a search?
+        desc.setFontData(this->onCreateFontData());
     }
     desc.serialize(wstream);
 }
@@ -171,18 +176,16 @@ void SkTypeface::serializeForcingEmbedding(SkWStream* wstream) const {
 
     // Always embed font data.
     if (!desc.hasFontData()) {
-        int ttcIndex;
-        desc.setFontData(this->onOpenStream(&ttcIndex));
-        desc.setFontIndex(ttcIndex);
+        desc.setFontData(this->onCreateFontData());
     }
     desc.serialize(wstream);
 }
 
 SkTypeface* SkTypeface::Deserialize(SkStream* stream) {
     SkFontDescriptor desc(stream);
-    SkStreamAsset* data = desc.transferFontData();
+    SkFontData* data = desc.getFontData();
     if (data) {
-        SkTypeface* typeface = SkTypeface::CreateFromStream(data, desc.getFontIndex());
+        SkTypeface* typeface = SkTypeface::CreateFromFontData(data);
         if (typeface) {
             return typeface;
         }
@@ -218,6 +221,17 @@ SkStreamAsset* SkTypeface::openStream(int* ttcIndex) const {
     return this->onOpenStream(ttcIndex);
 }
 
+SkFontData* SkTypeface::createFontData() const {
+    return this->onCreateFontData();
+}
+
+// This implementation is temporary until this method can be made pure virtual.
+SkFontData* SkTypeface::onCreateFontData() const {
+    int index;
+    SkAutoTDelete<SkStreamAsset> stream(this->onOpenStream(&index));
+    return new SkFontData(stream.detach(), index, 0, NULL);
+};
+
 int SkTypeface::charsToGlyphs(const void* chars, Encoding encoding,
                               uint16_t glyphs[], int glyphCount) const {
     if (glyphCount <= 0) {