Add support for multiple frames in SkCodec

src/codec/SkSampledCodec.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 "SkCodec.h"
 #include "SkCodecPriv.h"
 #include "SkMath.h"
@@ skipping 286 matching lines @@
                     if (!this->codec()->skipScanlines(sampleY - 1)) {
                         this->codec()->fillIncompleteImage(info, pixels, rowBytes,
                                 options.fZeroInitialized, dstHeight, y + 1);
                         return SkCodec::kIncompleteInput;
                     }
                 }
                 pixelPtr = SkTAddOffset<void>(pixelPtr, rowBytes);
             }
             return SkCodec::kSuccess;
         }
-        case SkCodec::kOutOfOrder_SkScanlineOrder:
         case SkCodec::kBottomUp_SkScanlineOrder: {
             // Note that these modes do not support subsetting.
             SkASSERT(0 == subsetY && nativeSize.height() == subsetHeight);
             int y;
             for (y = 0; y < nativeSize.height(); y++) {
                 int srcY = this->codec()->nextScanline();
                 if (is_coord_necessary(srcY, sampleY, dstHeight)) {
                     void* pixelPtr = SkTAddOffset<void>(pixels,
                             rowBytes * get_dst_coord(srcY, sampleY));
                     if (1 != this->codec()->getScanlines(pixelPtr, 1, rowBytes)) {
@@ skipping 23 matching lines @@
                 void* rowPtr = SkTAddOffset<void>(pixels, rowBytes * get_dst_coord(srcY, sampleY));
                 SkSampler::Fill(fillInfo, rowPtr, rowBytes, fillValue, options.fZeroInitialized);
             }
             return SkCodec::kIncompleteInput;
         }
         default:
             SkASSERT(false);
             return SkCodec::kUnimplemented;
     }
 }