Delete reallyHasAlpha() from SkCodec

include/codec/SkAndroidCodec.h

Index: include/codec/SkAndroidCodec.h
diff --git a/include/codec/SkAndroidCodec.h b/include/codec/SkAndroidCodec.h
index 4062e64dc5cf0d3e5cc52e797423c49be5ab1cfd..c5578d3964c7fae1513b3a3774a3b39528561e57 100644
--- a/include/codec/SkAndroidCodec.h
+++ b/include/codec/SkAndroidCodec.h
@@ -226,18 +226,6 @@ public:
      */
     SkCodec::Result getAndroidPixels(const SkImageInfo& info, void* pixels, size_t rowBytes);
 
-    /**
-     *  Some images may initially report that they have alpha due to the format
-     *  of the encoded data, but then never use any colors which have alpha
-     *  less than 100%. This function can be called *after* decoding to
-     *  determine if such an image truly had alpha. Calling it before decoding
-     *  is undefined.
-     *  FIXME: see skbug.com/3582.
-     */
-    bool reallyHasAlpha() const {
-        return fCodec->reallyHasAlpha();
-    }
-
 protected:
 
     SkAndroidCodec(SkCodec*);