Improve TranslatedVertexBuffer::map performance TRAC #11392 - Don't use the identity translation buffer, but always copy into a streaming buffer. Signed-off-by: Shannon Woods Signed-off-by: Daniel Koch Author: Andrew Lewycky git-svn-id: https://angleproject.googlecode.com/svn/trunk@264 736b8ea6-26fd-11df-bfd4-992fa37f6226