Make AndroidOptions const

src/codec/SkSampledCodec.cpp

Index: src/codec/SkSampledCodec.cpp
diff --git a/src/codec/SkSampledCodec.cpp b/src/codec/SkSampledCodec.cpp
index ed4eb7f02de94cab2b411291805e06d4fdf703b4..5302149e1212ba6a14d34e6a29878c24fdfc1d3f 100644
--- a/src/codec/SkSampledCodec.cpp
+++ b/src/codec/SkSampledCodec.cpp
@@ -70,7 +70,7 @@ SkISize SkSampledCodec::onGetSampledDimensions(int sampleSize) const {
 }
 
 SkCodec::Result SkSampledCodec::onGetAndroidPixels(const SkImageInfo& info, void* pixels,
-        size_t rowBytes, AndroidOptions& options) {
+        size_t rowBytes, const AndroidOptions& options) {
     // Create an Options struct for the codec.
     SkCodec::Options codecOptions;
     codecOptions.fZeroInitialized = options.fZeroInitialized;
@@ -135,7 +135,7 @@ SkCodec::Result SkSampledCodec::onGetAndroidPixels(const SkImageInfo& info, void
 
 
 SkCodec::Result SkSampledCodec::sampledDecode(const SkImageInfo& info, void* pixels,
-        size_t rowBytes, AndroidOptions& options) {
+        size_t rowBytes, const AndroidOptions& options) {
     // We should only call this function when sampling.
     SkASSERT(options.fSampleSize > 1);