add optional pref-config table to codecs



git-svn-id: http://skia.googlecode.com/svn/trunk@519 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/images/SkImageDecoder_libico.cpp b/src/images/SkImageDecoder_libico.cpp
index 9f21e13..ef5b7ac 100644
--- a/src/images/SkImageDecoder_libico.cpp
+++ b/src/images/SkImageDecoder_libico.cpp
@@ -29,8 +29,7 @@
     }
 
 protected:
-    virtual bool onDecode(SkStream* stream, SkBitmap* bm,
-                          SkBitmap::Config pref, Mode);
+    virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode);
 };
 
 /////////////////////////////////////////////////////////////////////////////////////////
@@ -79,8 +78,7 @@
     return 0;
 }
 
-bool SkICOImageDecoder::onDecode(SkStream* stream, SkBitmap* bm,
-                                 SkBitmap::Config pref, Mode mode)
+bool SkICOImageDecoder::onDecode(SkStream* stream, SkBitmap* bm, Mode mode)
 {
     size_t length = stream->read(NULL, 0);
     SkAutoMalloc autoMal(length);