Return the proper error code in SkBmpRLECodec

src/codec/SkBmpRLECodec.cpp

 /*
  * 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 "SkBmpRLECodec.h"
 #include "SkCodecPriv.h"
 #include "SkColorPriv.h"
@@ skipping 269 matching lines @@
         return SkCodec::kInvalidInput;
     }
 
     // Copy the color table to the client if necessary
     copy_color_table(dstInfo, this->fColorTable, inputColorPtr, inputColorCount);
 
     // Initialize a buffer for encoded RLE data
     fRLEBytes = fOrigRLEBytes;
     if (!this->initializeStreamBuffer()) {
         SkCodecPrintf("Error: cannot initialize stream buffer.\n");
-        return SkCodec::kInvalidConversion;
+        return SkCodec::kInvalidInput;
     }
 
     return SkCodec::kSuccess;
 }
 
 /*
  * Performs the bitmap decoding for RLE input format
  * RLE decoding is performed all at once, rather than a one row at a time
  */
 int SkBmpRLECodec::decodeRows(const SkImageInfo& info, void* dst, size_t dstRowBytes,
@@ skipping 238 matching lines @@
         fSampler.reset(new SkBmpRLESampler(this));
     }
 
     return fSampler;
 }
 
 int SkBmpRLECodec::setSampleX(int sampleX){
     fSampleX = sampleX;
     return get_scaled_dimension(this->getInfo().width(), sampleX);
 }