Serialize the font index.

include/core/SkRefCnt.h

 
 /*
  * 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.
  */
 
 
 #ifndef SkRefCnt_DEFINED
@@ skipping 216 matching lines @@
 
     /**
      *  SkAutoTUnref assumes ownership of the ref. As a result, it is an error
      *  for the user to ref or unref through SkAutoTUnref. Therefore
      *  SkAutoTUnref::operator-> returns BlockRef<T>*. This prevents use of
      *  skAutoTUnrefInstance->ref() and skAutoTUnrefInstance->unref().
      */
     BlockRefType *operator->() const {
         return static_cast<BlockRefType*>(fObj);
     }
-    operator T*() { return fObj; }
+    operator T*() const { return fObj; }

[bungeman-skia, 2014/09/18 14:50:09]

mtklein and I have stated a couple of times that this should actually be const,
since this doesn't mutate 'the pointer'. It hasn't been done before because we
haven't needed it and it seems so trivial to do on its own.

 
 private:
     T*  fObj;
 };
 // Can't use the #define trick below to guard a bare SkAutoTUnref(...) because it's templated. :(
 
 class SkAutoUnref : public SkAutoTUnref<SkRefCnt> {
 public:
     SkAutoUnref(SkRefCnt* obj) : SkAutoTUnref<SkRefCnt>(obj) {}
 };
 #define SkAutoUnref(...) SK_REQUIRE_LOCAL_VAR(SkAutoUnref)
 
 #endif