Enforce pure virtual behavior for onMatchFamilyStyleCharacter

src/ports/SkFontHost_linux.cpp

 /*
  * Copyright 2006 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkFontHost.h"
 #include "SkFontHost_FreeType_common.h"
 #include "SkFontDescriptor.h"
@@ skipping 230 matching lines @@
         return NULL;
     }
 
     virtual SkTypeface* onMatchFamilyStyle(const char familyName[],
                                            const SkFontStyle& fontStyle) const SK_OVERRIDE
     {
         SkAutoTUnref<SkFontStyleSet> sset(this->matchFamily(familyName));
         return sset->matchStyle(fontStyle);
     }
 
+    virtual SkTypeface* onMatchFamilyStyleCharacter(const char familyName[], const SkFontStyle&,
+                                                    const char* bcp47[], int bcp47Count,
+                                                    SkUnichar character) const SK_OVERRIDE
+    {
+        return NULL;
+    }
+
     virtual SkTypeface* onMatchFaceStyle(const SkTypeface* familyMember,
                                          const SkFontStyle& fontStyle) const SK_OVERRIDE
     {
         for (int i = 0; i < fFamilies.count(); ++i) {
             for (int j = 0; j < fFamilies[i]->fStyles.count(); ++j) {
                 if (fFamilies[i]->fStyles[j] == familyMember) {
                     return fFamilies[i]->matchStyle(fontStyle);
                 }
             }
         }
@@ skipping 149 matching lines @@
 
     SkTArray<SkAutoTUnref<SkFontStyleSet_Custom>, true> fFamilies;
     SkFontStyleSet_Custom* gDefaultFamily;
     SkTypeface* gDefaultNormal;
     SkTypeface_FreeType::Scanner fScanner;
 };
 
 SkFontMgr* SkFontMgr::Factory() {
     return new SkFontMgr_Custom(SK_FONT_FILE_PREFIX);
 }