Make AndroidOptions const

include/codec/SkAndroidCodec.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkAndroidCodec_DEFINED
 #define SkAndroidCodec_DEFINED
 
@@ skipping 174 matching lines @@
      *  The AndroidOptions object is also used to specify any requested scaling or subsetting
      *  using options->fSampleSize and options->fSubset.
      *
      *  @return Result kSuccess, or another value explaining the type of failure.
      */
     // FIXME: It's a bit redundant to name this getAndroidPixels() when this class is already
     //        called SkAndroidCodec.  On the other hand, it's may be a bit confusing to call
     //        this getPixels() when it is a slightly different API than SkCodec's getPixels().
     //        Maybe this should be decode() or decodeSubset()?
     SkCodec::Result getAndroidPixels(const SkImageInfo& info, void* pixels, size_t rowBytes,
-            AndroidOptions* options);
+            const AndroidOptions* options);
 
     /**
      *  Simplified version of getAndroidPixels() where we supply the default AndroidOptions.
      *
      *  This will return an error if the info is kIndex_8_SkColorType and also will not perform
      *  any scaling or subsetting.
      */
     SkCodec::Result getAndroidPixels(const SkImageInfo& info, void* pixels, size_t rowBytes);
 
 protected:
 
     SkAndroidCodec(const SkImageInfo&);
 
     virtual SkEncodedFormat onGetEncodedFormat() const = 0;
 
     virtual SkISize onGetSampledDimensions(int sampleSize) const = 0;
 
     virtual bool onGetSupportedSubset(SkIRect* desiredSubset) const = 0;
 
     virtual SkCodec::Result onGetAndroidPixels(const SkImageInfo& info, void* pixels,
-            size_t rowBytes, AndroidOptions& options) = 0;
+            size_t rowBytes, const AndroidOptions& options) = 0;
 
 private:
 
     // This will always be a reference to the info that is contained by the
     // embedded SkCodec.
     const SkImageInfo& fInfo;
 };
 #endif // SkAndroidCodec_DEFINED