add SK_ATTR_DEPRECATED -- will need to disable for chrome, since it triggers a warning

src/images/SkImageDecoder_libwebp.cpp

Index: src/images/SkImageDecoder_libwebp.cpp
diff --git a/src/images/SkImageDecoder_libwebp.cpp b/src/images/SkImageDecoder_libwebp.cpp
index 68014dd39247f0c663305584ad62ffde7ee978e7..ab58aef135baa4ae6b4c0bae267e3b4fb7d42199 100644
--- a/src/images/SkImageDecoder_libwebp.cpp
+++ b/src/images/SkImageDecoder_libwebp.cpp
@@ -521,7 +521,7 @@ private:
 
 bool SkWEBPImageEncoder::onEncode(SkWStream* stream, const SkBitmap& bm,
                                   int quality) {
-    const SkBitmap::Config config = bm.getConfig();
+    const SkBitmap::Config config = bm.config();
     const ScanlineImporter scanline_import = ChooseImporter(config);
     if (NULL == scanline_import) {
         return false;