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

BUG=
R=robertphillips@google.com, senorblanco@chromium.org, vandebo@chromium.org

Review URL: https://codereview.chromium.org/51033004

git-svn-id: http://skia.googlecode.com/svn/trunk@12055 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/images/SkImageDecoder_libwebp.cpp b/src/images/SkImageDecoder_libwebp.cpp
index 68014dd..ab58aef 100644
--- a/src/images/SkImageDecoder_libwebp.cpp
+++ b/src/images/SkImageDecoder_libwebp.cpp
@@ -521,7 +521,7 @@
 
 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;