zlib/pdf: remove HaveFlate(), depend on preprocessor defines

src/core/SkFlate.h

 
 /*
  * Copyright 2010 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 SkFlate_DEFINED
 #define SkFlate_DEFINED
 
 #include "SkTypes.h"
 
+#ifndef Sk_NO_FLATE
+
 class SkData;
 class SkWStream;
 class SkStream;
 
 /** \class SkFlate
     A class to provide access to the flate compression algorithm.
 */
 class SkFlate {
 public:
-    /** Indicates if the flate algorithm is available.
-     */
-    static bool HaveFlate();
-
     /**
      *  Use the flate compression algorithm to compress the data in src,
      *  putting the result into dst.  Returns false if an error occurs.
      */
     static bool Deflate(SkStream* src, SkWStream* dst);
 
     /**
      *  Use the flate compression algorithm to compress the data in src,
      *  putting the result into dst.  Returns false if an error occurs.
      */
     static bool Deflate(const void* src, size_t len, SkWStream* dst);
 
     /**
      *  Use the flate compression algorithm to compress the data,
      *  putting the result into dst.  Returns false if an error occurs.
      */
     static bool Deflate(const SkData*, SkWStream* dst);
 
     /** Use the flate compression algorithm to decompress the data in src,
         putting the result into dst.  Returns false if an error occurs.
      */
     static bool Inflate(SkStream* src, SkWStream* dst);
 };
 
-#endif
+#endif  // SK_NO_FLATE
+#endif  // SkFlate_DEFINED