Qualify the return value of SkImageDecoder::decode

samplecode/SampleUnpremul.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 "gm.h"
 
 #include "Resources.h"
@@ skipping 164 matching lines @@
         SkFILEStream stream(fCurrFile.c_str());
         SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(&stream));
         if (NULL == decoder.get()) {
             fDecodeSucceeded = false;
             return;
         }
         if (!fPremul) {
             decoder->setRequireUnpremultipliedColors(true);
         }
         fDecodeSucceeded = decoder->decode(&stream, &fBitmap, kN32_SkColorType,
-                                           SkImageDecoder::kDecodePixels_Mode);
+                SkImageDecoder::kDecodePixels_Mode) != SkImageDecoder::kFailure;
         this->inval(NULL);
     }
 
     void togglePremul() {
         fPremul = !fPremul;
         this->decodeCurrFile();
     }
 
     typedef SampleView INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
 static SkView* MyFactory() {
     return new UnpremulView(GetResourcePath());
 }
 static SkViewRegister reg(MyFactory);