THRIFT-926. cpp: Let TMemoryBuffer::resetBuffer() set size of self-allocated buffer

Although there is a constructor that allows a TMemoryBuffer to be
created with an internally-allocated buffer of a desired size, there was
no way for resetBuffer to obtain analogous behavior. This change causes
the appropriate constructor to be used.

git-svn-id: https://svn.apache.org/repos/asf/incubator/thrift/trunk@1005168 13f79535-47bb-0310-9956-ffa450edef68
1 file changed