- fixed 3091271 -- missing plug-in icon is on white
	background, not transparent.

        * Resources/nullplugin.tiff: Photoshopped the white away. It's
	still ugly, but that's a separate bug (3091274)

WebBrowser:

	Removed the text from the lock icon. Also cleaned up the
	code that positions the lock icon in the window.

        * BrowserWindow.m:
        (-[BrowserWindow adjustRightSideImageViewFrame]):
	new method, sets the image view's frame based on the image size
	and specified margins
        (-[BrowserWindow setUpRightSideImageView]):
	now calls adjustRightSideImageViewFrame
        (-[BrowserWindow setTitleBarRightSideImage:]):
	now calls adjustRightSideImageViewFrame if image has changed

        * Resources/Images/Lock.tif: textless version


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@2564 268f45cc-cd09-0410-ab3c-d52691b4dbfc