SharedBuffer.h should include wtf/OwnPtr.h ... because it has an OwnPtr<T> member variable. As is, any .cpp file that includes SharedBuffer.h has to include OwnPtr.h. That seems undesirable. Patch coming up.
Created attachment 26750 [details] v1 patch
Created attachment 26751 [details] v2 patch ... and sort the includes.
Comment on attachment 26751 [details] v2 patch LGTM.
http://trac.webkit.org/changeset/39933