Make SkTDArray accessors const-friendly

src/images/SkImageDecoder_libbmp.cpp

 
 /*
  * Copyright 2007 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "bmpdecoderhelper.h"
@@ skipping 50 matching lines @@
         if (fJustBounds) {
             return NULL;
         }
 
         fRGB.setCount(width * height * 3);  // 3 == r, g, b
         return fRGB.begin();
     }
 
     int width() const { return fWidth; }
     int height() const { return fHeight; }
-    uint8_t* rgb() const { return fRGB.begin(); }
+    const uint8_t* rgb() const { return fRGB.begin(); }
 
 private:
     SkTDArray<uint8_t> fRGB;
     int fWidth;
     int fHeight;
     bool fJustBounds;
 };
 
 bool SkBMPImageDecoder::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) {
 
@@ skipping 53 matching lines @@
     const int dstHeight = sampler.scaledHeight();
     const uint8_t* srcRow = callback.rgb();
 
     srcRow += sampler.srcY0() * srcRowBytes;
     for (int y = 0; y < dstHeight; y++) {
         sampler.next(srcRow);
         srcRow += sampler.srcDY() * srcRowBytes;
     }
     return true;
 }