Bug 177183 [Dialogs] PopupDialog should show the view menu on mouseDown
I20070306-1200 PopupDialog should show the view menu on mouseDown. Trivial fix follows.
bundles/org.eclipse.jface/src/org/eclipse/jface/dialogs/PopupDialog.java
* 
	 * @return the return code
	 * 
	 * @see org.eclipse.jface.window.Window#open()
	 */
	public int open() {
		Shell shell = getShell();
		if (shell == null || shell.isDisposed()) {
			shell = null;
			
			create();
			shell = getShell();
		}
		
		
		
		adjustBounds();
		
		constrainShellSize();
		
		setTabOrder((Composite) getContents());
		
		listenToDeactivate = false;
		listenToParentDeactivate = false;
		
		if (takeFocusOnOpen) {
			shell.open();
			getFocusControl().setFocus();
		} else {
			shell.setVisible(true);