Call rewindIfNeeded in SkCodec

src/codec/SkBmpStandardCodec.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 "SkBmpStandardCodec.h"
 #include "SkCodecPriv.h"
 #include "SkColorPriv.h"
@@ skipping 19 matching lines @@
 {}
 
 /*
  * Initiates the bitmap decode
  */
 SkCodec::Result SkBmpStandardCodec::onGetPixels(const SkImageInfo& dstInfo,
                                         void* dst, size_t dstRowBytes,
                                         const Options& opts,
                                         SkPMColor* inputColorPtr,
                                         int* inputColorCount) {
-    if (!this->rewindIfNeeded()) {
-        return kCouldNotRewind;
-    }
     if (opts.fSubset) {
         // Subsets are not supported.
         return kUnimplemented;
     }
     if (dstInfo.dimensions() != this->getInfo().dimensions()) {
         SkCodecPrintf("Error: scaling not supported.\n");
         return kInvalidScale;
     }
     if (!conversion_possible(dstInfo, this->getInfo())) {
         SkCodecPrintf("Error: cannot convert input type to output type.\n");
@@ skipping 237 matching lines @@
             int modulus;
             SkTDivMod(x, 8, &quotient, &modulus);
             uint32_t shift = 7 - modulus;
             uint32_t alphaBit =
                     (fSrcBuffer.get()[quotient] >> shift) & 0x1;
             dstRow[x] &= alphaBit - 1;
         }
     }
     return kSuccess;
 }