Ingo Weinhold b05413ed78 PackageFileHeapWriter: Fix update case
* Pull _UnwriteLastPartialChunk() out of Reinit() for reuse.
* _UnwriteLastPartialChunk(): fPendingDataSize wasn't set.
* _PushChunks(): Some simplifications for clarity.
* ChunkBuffer/RemoveDataRanges(): Use data reading and decompression
  methods provided by our base class instead of duplicating the
  implementation.
* RemoveDataRanges():
  - _FlushPendingData() before starting, so we don't ignore the pending
    data and _UnwriteLastPartialChunk() when done, so a partial chunk
    is read back into the pending data buffer.
  - fUncompressedHeapSize wasn't reset before the main processing loop,
    thus resulting in an erroneous size later on.
2013-05-25 01:12:27 +02:00
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