bug 971001 - backout 625383 for failing awsy r=backout

netwerk/protocol/http/nsHttpTransaction.cpp

@@ -676,28 +676,6 @@ nsHttpTransaction::WritePipeSegment(nsIOutputStream *stream,
     //
     // OK, now let the caller fill this segment with data.
     //
-    if (!trans->mHaveAllHeaders) {
-        // Reading too far ahead on a chunked encoding is expensive (see below)
-        // so limit header reads to 1KB to minimize any potential damage while
-        // we figure out the message delimiter.
-        count = std::min(count, 1024U);
-    } else if (trans->mChunkedDecoder) {
-        // The API in use requires us to return entity data in 1 contiguous
-        // buffer supplied by the caller. That means
-        // all entity data needs to be moved up to cover gaps created by
-        // stripping the chunk length. We can mitigate this problem by
-        // doing short reads when we are parsing chunk lengths and limiting
-        // reads in the middle of chunks to the remaining chunk size to
-        // increase the frequency of chunk markers naturally aligning
-        // at the start.
-        if (!trans->mChunkedDecoder->GetChunkRemaining()) {
-            count = std::min(count, 6U); // 6 is 4 hex chars + CRLF
-        } else {
-            // extra 2 bytes is for CRLF that terminates the chunk
-            count = std::min(count,
-                             trans->mChunkedDecoder->GetChunkRemaining() + 2);
-        }
-    }
     rv = trans->mWriter->OnWriteSegment(buf, count, countWritten);
     if (NS_FAILED(rv)) return rv; // caller didn't want to write anything