Deferred image decoding to handle broken GIFs

Source/platform/graphics/DeferredImageDecoderTest.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 307 matching lines @@
 
     // The following code should not fail any assert.
     SkCanvas* tempCanvas = m_picture.beginRecording(100, 100);
     tempCanvas->drawBitmap(image->bitmap(), 0, 0);
     m_picture.endRecording();
     EXPECT_EQ(0, m_frameBufferRequestCount);
     m_canvas->drawPicture(m_picture);
     EXPECT_EQ(1, m_frameBufferRequestCount);
 }
 
+TEST_F(DeferredImageDecoderTest, smallerFrameCount)
+{
+    m_frameCount = 1;
+    m_lazyDecoder->setData(m_data.get(), false);
+    EXPECT_EQ(m_frameCount, m_lazyDecoder->frameCount());
+    m_frameCount = 2;
+    m_lazyDecoder->setData(m_data.get(), false);
+    EXPECT_EQ(m_frameCount, m_lazyDecoder->frameCount());
+    m_frameCount = 0;
+    m_lazyDecoder->setData(m_data.get(), true);
+    EXPECT_EQ(m_frameCount, m_lazyDecoder->frameCount());
+}
+
 } // namespace WebCore