Use a wrapper for SkDebugf in 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 "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
 /*
  *
  * This class implements the decoding for bmp images
  *
  */
 class SkBmpCodec : public SkCodec {
 public:
 
     /*
      *
@@ skipping 147 matching lines @@
     SkAutoTDelete<SkColorTable>         fColorTable;     // owned
     uint32_t                            fNumColors;
     const uint32_t                      fBytesPerColor;
     const uint32_t                      fOffset;
     const RowOrder                      fRowOrder;
     const size_t                        fRLEBytes;
     const bool                          fIsIco;
 
     typedef SkCodec INHERITED;
 };