Reviewed by John.

    Reviewed by John.

        - fixed <rdar://problem/3987619> in some cases, text doesn't resize with Format->Style->Bigger/Smaller

        * khtml/editing/htmlediting.cpp:
        (khtml::ApplyStyleCommand::applyRelativeFontStyleChange): Only call nodeFullySelected for non-text nodes.
        Text nodes are already split so they're either in the range and full selected or out of the range.
        And nodeFullySelected doesn't work for text nodes.
        (khtml::ApplyStyleCommand::nodeFullySelected): Add an assertion, since this function only works for elements,
        not text nodes.
        (khtml::ApplyStyleCommand::nodeFullyUnselected): Ditto.

        - make big improvement in <rdar://problem/3953636> Mail hung for ~10sec changing font of 84328 characters: khtml::ApplyStyleCommand::nodeFullySelected

        * khtml/xml/dom2_rangeimpl.cpp: (DOM::RangeImpl::compareBoundaryPoints): Improve algorithm based on suggestion
        from Nate Begeman.

        - fixed <rdar://problem/4020305> REGRESSION (185-186): loading image in new window using document.write fails

        * khtml/xml/dom_docimpl.cpp: (DocumentImpl::open): If there is no parent document, don't blow away the base URL.

        - fixed <rdar://problem/4021701> REGRESSION (188-188+): form not submitted after pressing <return> at http://hrweb.apple.com

        * khtml/xml/dom_nodeimpl.cpp: (NodeImpl::dispatchMouseEvent): Send activate event in the case where the event
        sent is a KHTML_CLICK_EVENT, not CLICK_EVENT.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@8681 268f45cc-cd09-0410-ab3c-d52691b4dbfc