BackingStore::scroll() unnecessarily copies pixels around
<rdar://problem/10891801>
Created attachment 127716 [details] Maintain a mapping from backing store coordinates to client coordinates in the most recently scrolled rect
Created attachment 127720 [details] Maintain a mapping from backing store coordinates to client coordinates in the most recently scrolled rect
Comment on attachment 127720 [details] Maintain a mapping from backing store coordinates to client coordinates in the most recently scrolled rect View in context: https://bugs.webkit.org/attachment.cgi?id=127720&action=review > Source/WebKit2/UIProcess/BackingStore.h:99 > + // Contents of m_scrolledRect are offset by this amount (and wrapped around) with respect to Please add an extra newline before this comment.
Fixed in <http://trac.webkit.org/r108181>.