https://bugs.webkit.org/show_bug.cgi?id=77718

Patch by Benjamin Poulain <bpoulain@apple.com> on 2012-02-13
Reviewed by David Kilzer.

Previously, the last part of SharedBuffer::getSomeData() was systematically accessing
the data from the segments. When NETWORK_CFDATA_ARRAY_CALLBACK is defined, there can
be data in m_dataArray past the segment.

The previous code was making invalid memory access pass the segment vector. This patch
adds support for getting the data out of m_dataArray to make SharedBuffer::getSomeData()
works with NETWORK_CFDATA_ARRAY_CALLBACK.

This is covered by existing tests when NETWORK_CFDATA_ARRAY_CALLBACK is defined.
The test 'fast/events/constructors/track-event-constructor.html' is a reliable test
for this.

* platform/SharedBuffer.cpp:
(WebCore::SharedBuffer::getSomeData):
* platform/SharedBuffer.h:
(SharedBuffer):
* platform/cf/SharedBufferCF.cpp:
(WebCore):
(WebCore::SharedBuffer::copySomeDataFromDataArray):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@107648 268f45cc-cd09-0410-ab3c-d52691b4dbfc