Fix ImageDecoder::frameIsCompleteAtIndex - fully received instead of decoded.

third_party/WebKit/Source/platform/image-decoders/ImageDecoderTestHelpers.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "platform/image-decoders/ImageDecoderTestHelpers.h"
 
 #include "platform/SharedBuffer.h"
 #include "platform/image-decoders/ImageDecoder.h"
 #include "platform/image-decoders/ImageFrame.h"
 #include "platform/testing/UnitTestHelpers.h"
@@ skipping 68 matching lines @@
         sourceData[1]->append(source++, 1u);
         // Alternate the buffers to cover the JPEGImageDecoder::onSetData restart code.
         decoder->setData(sourceData[length & 1].get(), length == data->size());
 
         EXPECT_LE(frameCount, decoder->frameCount());
         frameCount = decoder->frameCount();
 
         if (!decoder->isSizeAvailable())
             continue;
 
+        bool frameIsFullyReceived = decoder->frameIsFullyReceivedAtIndex(frameCount - 1);
         ImageFrame* frame = decoder->frameBufferAtIndex(frameCount - 1);
+
+        // FIXME: libwebp parsing of crbug.364830.webp doesn't mark the frame
+        // as complete two bytes before the end of the file. However, decoding
+        // it to the same point produces completely decoded frame.
+        if (decoder->filenameExtension() != "webp" || frameIsFullyReceived)
+            EXPECT_EQ(frameIsFullyReceived, decoder->frameIsCompleteAtIndex(frameCount - 1) || decoder->failed());
+
         if (frame && frame->getStatus() == ImageFrame::FrameComplete && framesDecoded < frameCount)
             ++framesDecoded;
     }
 
     EXPECT_FALSE(decoder->failed());
     EXPECT_EQ(expectedFrameCount, decoder->frameCount());
     EXPECT_EQ(expectedFrameCount, framesDecoded);
     EXPECT_EQ(expectedRepetitionCount, decoder->repetitionCount());
 
     ASSERT_EQ(expectedFrameCount, baselineHashes.size());
@@ skipping 32 matching lines @@
     // data in a segment, its pointer would no longer be valid.
     segmentedData->data();
 
     ImageFrame* frame = decoder->frameBufferAtIndex(0);
     ASSERT_FALSE(decoder->failed());
     EXPECT_EQ(frame->getStatus(), ImageFrame::FrameComplete);
     EXPECT_EQ(hashBitmap(frame->bitmap()), hash);
 }
 
 } // namespace blink