Moved "overURL" handling out of WebCore into WebKit and Alex.
	Also separated the two levels of the "element dictionary" so they
	don't rely on having the same keys.

        * khtml/khtml_part.h: Revert the APPLE_CHANGES to overURL.
        * khtml/khtml_part.cpp:
        (KHTMLPart::overURL): Removed the APPLE_CHANGES and just ifdef'd out
	the whole thing for our version.
        (KHTMLPart::khtmlMouseMoveEvent): Get rid of the APPLE_CHANGES and
	don't do any of the status bar setup.

        * kwq/KWQKHTMLPartImpl.h: Remove overURL.
        * kwq/KWQKHTMLPartImpl.mm: Ditto.

        * kwq/WebCoreBridge.h: Change keys so they don't match the WebKit ones so
	we don't accidentally rely on that. Add WebCoreElementLinkTarget.

        * kwq/WebCoreBridge.mm: (-[WebCoreBridge elementAtPoint:]): Add code to
	set up WebCoreElementLinkTarget.

WebKit:

	Machinery so we can handle mouseover feedback at the browser level.

        * WebView.subproj/WebWindowOperationsDelegate.h: Added mouseDidMoveOverElement:modifierFlags:.

        * WebKit.exp: Export WebElementLinkTargetFrameKey.
        * WebView.subproj/WebController.h: Add WebElementLinkTargetFrameKey.
        * WebView.subproj/WebController.m: Ditto.

        * WebView.subproj/WebHTMLView.m:
        (-[WebHTMLView removeMouseMovedObserver]): Send a callback when we
	stop tracking the mouse altogether.
        (-[WebHTMLView viewDidMoveToWindow]): Only set up the mouse moved
	observer if we are the top-level HTML view.
        (-[WebHTMLView windowDidBecomeMain:]): Ditto.
        (-[WebHTMLView mouseMovedNotification:]): Handle mouse over if we are
	over any subview of the HTML view. Also send the callback.

        * WebView.subproj/WebHTMLViewPrivate.h: Added lastMouseOverElementWasNotNil,
	_mouseOverElement:modifierFlags: and _insideAnotherHTMLView.
        * WebView.subproj/WebHTMLViewPrivate.m:
        (-[WebHTMLView _elementAtPoint:]): Copy over each element separately so
	we don't rely on keys matching. Find the target frame given the target string,
	and include it in the dictionary.
        (-[WebHTMLView _mouseOverElement:modifierFlags]): Added. Calls the window
	operations delegate method, but doesn't call it over and over again if the
	information is still "nil".
        (-[WebHTMLView _insideAnotherHTMLView]): Added.
        (-[NSMutableDictionary _web_setObjectIfNotNil:forKey:]): Added. Helper for
	the _elementAtPoint method which could be moved to WebNSDictionaryExtras some day.

WebBrowser:

	- fixed 2935687 -- cmd-shift-click should open new window behind
	- fixed 3050456 -- Click modifier actions are decided by WebBrowser,
	but status messages come from WebCore

        * BrowserWebController.m:
        (-[BrowserWebController mouseDidMoveOverElement:modifierFlags:]): Added.
	Contains the same logic that used to be in WebCore for mouseover messages,
	but translated into WebKit-ese as opposed to WebCore-ese.

        * WebBrowser.pbproj/project.pbxproj: Change encoding of BrowserWebController.m
	to UTF-8. Be careful if you open this file without having the project open in
	Project Builder.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2232 268f45cc-cd09-0410-ab3c-d52691b4dbfc