Reviewed by John.

    Reviewed by John.

	Added stubbed-out versions of all the NSTextInput protocol
	methods, and put comments in places where we will need to call the
	input manager to make input methods work 100%.

        * WebCoreSupport.subproj/WebBridge.m:
        (-[WebBridge respondToChangedSelection]):
        * WebView.subproj/WebHTMLView.m:
        (-[WebHTMLView mouseDown:]):
        (-[WebHTMLView mouseDragged:]):
        (-[WebHTMLView mouseUp:]):
        (-[WebHTMLView _interceptEditingKeyEvent:]):
        (-[WebHTMLView keyDown:]):
        (-[WebHTMLView _selectionChanged]):
        (-[WebHTMLView _delegateDragSourceActionMask]):
        (-[WebHTMLView validAttributesForMarkedText]):
        (-[WebHTMLView characterIndexForPoint:]):
        (-[WebHTMLView firstRectForCharacterRange:]):
        (-[WebHTMLView selectedRange]):
        (-[WebHTMLView markedRange]):
        (-[WebHTMLView attributedSubstringFromRange:]):
        (-[WebHTMLView conversationIdentifier]):
        (-[WebHTMLView hasMarkedText]):
        (-[WebHTMLView unmarkText]):
        (-[WebHTMLView setMarkedText:selectedRange:]):
        (-[WebHTMLView doCommandBySelector:]):
        (-[WebHTMLView insertText:]):
        * WebView.subproj/WebHTMLViewInternal.h:
        * WebView.subproj/WebView.m:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@7160 268f45cc-cd09-0410-ab3c-d52691b4dbfc