Fix bug in SkGifCodec / Switch SkImageDec tests to use Codec

tests/SkpSkGrTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrContext.h"
 #include "GrContextFactory.h"
 #include "GrRenderTarget.h"
 #include "SkGpuDevice.h"
 #include "gl/GrGLDefines.h"
 
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkColor.h"
 #include "SkDevice.h"
 #include "SkGraphics.h"
-#include "SkImageDecoder.h"
 #include "SkImageEncoder.h"
 #include "SkOSFile.h"
 #include "SkPicture.h"
 #include "SkRTConf.h"
 #include "SkStream.h"
 #include "SkString.h"
 #include "SkTArray.h"
 #include "SkTDArray.h"
 #include "SkTaskGroup.h"
 #include "SkTime.h"
@@ skipping 363 matching lines @@
             size_t length = stream.getLength();
             SkTArray<char, true> bytes;
             bytes.push_back_n(length);
             stream.read(&bytes[0], length);
             stream.rewind();
             SkString wPath = make_filepath(0, outSkpDir, fFilename);
             SkFILEWStream wStream(wPath.c_str());
             wStream.write(&bytes[0], length);
             wStream.flush();
         }
-        pic = SkPicture::CreateFromStream(&stream, &SkImageDecoder::DecodeMemory);
+        pic = SkPicture::CreateFromStream(&stream);
         if (!pic) {
             SkDebugf("unable to decode %s\n", fFilename);
             goto finish;
         }
         int pWidth = pic->width();
         int pHeight = pic->height();
         int pLargerWH = SkTMax(pWidth, pHeight);
         GrContextFactory contextFactory;
 #ifdef SK_BUILD_FOR_WIN
         GrContext* context = contextFactory.get(kAngle);
@@ skipping 334 matching lines @@
     int testIndex = 166;
     int dirIndex = skipOverSkGr[testIndex - 166].directory;
     SkString pictDir = make_in_dir_name(dirIndex);
     if (pictDir.size() == 0) {
         return;
     }
     SkString filename(skipOverSkGr[testIndex - 166].filename);
     TestResult::Test(dirIndex, filename.c_str(), kCompareBits, reporter->verbose());
     TestResult::Test(dirIndex, filename.c_str(), kEncodeFiles, reporter->verbose());
 }