Add SkEncodedFormat, used by SkCodec.

experimental/PdfViewer/src/SkPdfDiffEncoder.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkPdfDiffEncoder.h"
 #include "SkPdfNativeTokenizer.h"
 
@@ skipping 99 matching lines @@
             }
 
             canvas.flush();
 
             SkString out;
 
             // TODO(edisonn): overlay on top of image inf about the clip , grafic state, the stack
 
             out.appendf("/tmp/log_step_by_step/step-%i-%s.png", gOpCounter, gLastKeyword.c_str());
 
-            SkImageEncoder::EncodeFile(out.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
+            SkImageEncoder::EncodeFile(out.c_str(), bitmap, kPNG_SkEncodedFormat, 100);
         }
     }
 
     if (token->fType == kKeyword_TokenType && token->fKeyword && token->fKeywordLength > 0) {
         gLastKeyword.set(token->fKeyword, token->fKeywordLength);
     } else {
         gLastKeyword.reset();
     }
 #endif
 }