In Google3 build, use SK_SFNTLY_SUBSETTER define to enable/disable sfntly.

src/pdf/SkPDFFont.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include <ctype.h>
 
 #include "SkData.h"
 #include "SkGlyphCache.h"
 #include "SkPaint.h"
 #include "SkPDFCanon.h"
 #include "SkPDFDevice.h"
 #include "SkPDFFont.h"
 #include "SkPDFFontImpl.h"
 #include "SkPDFStream.h"
 #include "SkPDFTypes.h"
 #include "SkPDFUtils.h"
 #include "SkRefCnt.h"
 #include "SkScalar.h"
 #include "SkStream.h"
 #include "SkTypefacePriv.h"
 #include "SkTypes.h"
 #include "SkUtils.h"
 
-#if defined (GOOGLE3)
-    #if !defined (SK_BUILD_FOR_ANDROID) && !defined (SK_BUILD_FOR_IOS)
+#if defined (SK_SFNTLY_SUBSETTER)
+    #if defined (GOOGLE3)
         // #including #defines doesn't work with this build system.
         #include "typography/font/sfntly/src/sample/chromium/font_subsetter.h"
-        #define SK_SFNTLY_SUBSETTER  // For the benefit of #ifdefs below.
+    #else
+        #include SK_SFNTLY_SUBSETTER
     #endif
-#elif defined (SK_SFNTLY_SUBSETTER)
-    #include SK_SFNTLY_SUBSETTER
 #endif
 
 // PDF's notion of symbolic vs non-symbolic is related to the character set, not
 // symbols vs. characters.  Rarely is a font the right character set to call it
 // non-symbolic, so always call it symbolic.  (PDF 1.4 spec, section 5.7.1)
 static const int kPdfSymbolic = 4;
 
 namespace {
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 1383 matching lines @@
     SkAutoTUnref<const SkAdvancedTypefaceMetrics> fontMetrics(
             face->getAdvancedTypefaceMetrics(
                     SkTypeface::kNo_PerGlyphInfo, nullptr, 0));
     if (fontMetrics) {
         canEmbed = !SkToBool(
                 fontMetrics->fFlags &
                 SkAdvancedTypefaceMetrics::kNotEmbeddable_FontFlag);
     }
     return *canon->fCanEmbedTypeface.set(id, canEmbed);
 }