Add SkEncodedFormat, used by SkCodec.

src/codec/SkCodec_libbmp.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCodec.h"
 #include "SkColorTable.h"
+#include "SkEncodedFormat.h"
 #include "SkImageInfo.h"
 #include "SkMaskSwizzler.h"
 #include "SkStream.h"
 #include "SkSwizzler.h"
 #include "SkTypes.h"
 
 // TODO: rename SkCodec_libbmp files to SkBmpCodec
 // TODO: define a wrapper for SkDebugf that doesn't always print
 /*
  *
@@ skipping 33 matching lines @@
 
     /*
      *
      * Initiates the bitmap decode
      *
      */
     virtual Result onGetPixels(const SkImageInfo& dstInfo, void* dst,
                                size_t dstRowBytes, const Options&, SkPMColor*,
                                int*) SK_OVERRIDE;
 
+    SkEncodedFormat onGetEncodedFormat() const SK_OVERRIDE { return kBMP_SkEncodedFormat; }
 private:
 
     /*
      *
      * Used to define the input format of the bitmap
      *
      */
     enum BitmapInputFormat {
         kStandard_BitmapInputFormat,
         kRLE_BitmapInputFormat,
@@ skipping 82 matching lines @@
     SkAutoTDelete<SkMasks>              fMasks;          // owned
     SkAutoTDelete<SkColorTable>         fColorTable;     // owned
     uint32_t                            fNumColors;
     const uint32_t                      fBytesPerColor;
     const uint32_t                      fOffset;
     const RowOrder                      fRowOrder;
     const size_t                        fRLEBytes;
 
     typedef SkCodec INHERITED;
 };