Report repetition count in SkCodec

gm/animatedGif.cpp

 /*
  * Copyright 2016 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 "SkAnimTimer.h"
 #include "SkCanvas.h"
@@ skipping 111 matching lines @@
             return false;
         }
 
         fCodec.reset(SkCodec::NewFromStream(stream.release()));
         if (!fCodec) {
             SkDebugf("Could create codec from %s", FLAGS_animatedGif[0]);
             return false;
         }
 
         fFrame = 0;
-        fFrameInfos = fCodec->getFrameInfo();
+        if (!fCodec->getFrameInfo(&fFrameInfos, nullptr)) {
+            SkDebugf("%s is not animated", FLAGS_animatedGif[0]);
+            return false;
+        }
         fTotalFrames = fFrameInfos.size();
         return true;
     }
 
     void onDraw(SkCanvas* canvas) override {
         if (!fCodec) {
             SkString errorText = SkStringPrintf("Nothing to draw; %s", FLAGS_animatedGif[0]);
             error(canvas, errorText);
             return;
         }
@@ skipping 34 matching lines @@
             // in order to draw correctly.
             fNextUpdate += fFrameInfos[fFrame].fDuration;
         }
 
         return true;
     }
 };
 
 DEF_GM(return new AnimatedGifGM);