Add SkEncodedInfo to report properties of encoded image data

src/codec/SkBmpRLECodec.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 "SkBmpCodec.h"
 #include "SkColorTable.h"
 #include "SkImageInfo.h"
 #include "SkSampler.h"
 #include "SkTypes.h"
 
 /*
  * This class implements the decoding for bmp images that use an RLE encoding
  */
 class SkBmpRLECodec : public SkBmpCodec {
 public:
 
     /*
      * Creates an instance of the decoder
      *
      * Called only by SkBmpCodec::NewFromStream
      * There should be no other callers despite this being public
      *
-     * @param srcInfo contains the source width and height
+     * @param info contains properties of the encoded data
      * @param stream the stream of encoded image data
      * @param bitsPerPixel the number of bits used to store each pixel
      * @param numColors the number of colors in the color table
      * @param bytesPerColor the number of bytes in the stream used to represent
                             each color in the color table
      * @param offset the offset of the image pixel data from the end of the
      *               headers
      * @param rowOrder indicates whether rows are ordered top-down or bottom-up
      * @param RLEBytes indicates the amount of data left in the stream
      *                 after decoding the headers
      */
-    SkBmpRLECodec(const SkImageInfo& srcInfo, SkStream* stream,
+    SkBmpRLECodec(int width, int height, const SkEncodedInfo& info, SkStream* stream,
             uint16_t bitsPerPixel, uint32_t numColors, uint32_t bytesPerColor,
             uint32_t offset, SkCodec::SkScanlineOrder rowOrder,
             size_t RLEBytes);
 
     int setSampleX(int);
 
 protected:
 
     Result onGetPixels(const SkImageInfo& dstInfo, void* dst,
                        size_t dstRowBytes, const Options&, SkPMColor*,
@@ skipping 58 matching lines @@
     SkAutoTDelete<SkSampler>            fSampler;
 
     // Scanline decodes allow the client to ask for a single scanline at a time.
     // This can be tricky when the RLE encoding instructs the decoder to jump down
     // multiple lines.  This field keeps track of lines that need to be skipped
     // on subsequent calls to decodeRows().
     int                                 fLinesToSkip;
 
     typedef SkBmpCodec INHERITED;
 };