Updates to skimage tool to use it for testing.

include/images/SkImageEncoder.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #ifndef SkImageEncoder_DEFINED
 #define SkImageEncoder_DEFINED
 
 #include "SkTypes.h"
 
 class SkBitmap;
 class SkWStream;
 
 class SkImageEncoder {
 public:
     enum Type {
+        kUnknown_Type,
         kBMP_Type,
         kGIF_Type,
         kICO_Type,
         kJPEG_Type,
         kPNG_Type,
         kWBMP_Type,
         kWEBP_Type,
     };
     static SkImageEncoder* Create(Type);
 
@@ skipping 52 matching lines @@
         return SkNEW( Sk ## codec );            \
     }
 
 // All the encoders known by Skia. Note that, depending on the compiler settings,
 // not all of these will be available
 DECLARE_ENCODER_CREATOR(JPEGImageEncoder);
 DECLARE_ENCODER_CREATOR(PNGImageEncoder);
 DECLARE_ENCODER_CREATOR(WEBPImageEncoder);
 
 #endif