Remove explicit disabled icons from org.eclipse.ui.browser bundle

Use on-the-fly-generated disabled version of SVG-rasterized icons
instead.

Author: HeikoKlare

bundles/org.eclipse.ui.browser/src/org/eclipse/ui/internal/browser/BrowserViewer.java

@@ -167,7 +167,6 @@ public static interface IBackNextListener {
 	private static final String URL_PREFIX = "$nl$/icons/"; //$NON-NLS-1$
 	private static final String URL_ELCL = URL_PREFIX + "elcl16/"; //$NON-NLS-1$
 	private static final String URL_CLCL = URL_PREFIX + "clcl16/"; //$NON-NLS-1$
-	private static final String URL_DLCL = URL_PREFIX + "dlcl16/"; //$NON-NLS-1$
 
 	/**
 	 * Creates a new Web browser given its parent and a style value describing
@@ -784,7 +783,6 @@ private ToolBar createLocationBar(Composite parent) {
 		ToolItem go = new ToolItem(toolbar, SWT.NONE);
 		go.setImage(getImage(URL_ELCL, "nav_go.svg")); //$NON-NLS-1$
 		go.setHotImage(getImage(URL_CLCL, "nav_go.svg")); //$NON-NLS-1$
-		go.setDisabledImage(getImage(URL_DLCL, "nav_go.png")); //$NON-NLS-1$
 		go.setToolTipText(Messages.actionWebBrowserGo);
 		go.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> setURL(combo.getText())));
 
@@ -798,29 +796,25 @@ private ToolBar createToolbar(Composite parent) {
 		back = new ToolItem(toolbar, SWT.NONE);
 		back.setImage(getImage(URL_ELCL, "nav_backward.svg")); //$NON-NLS-1$
 		back.setHotImage(getImage(URL_CLCL, "nav_backward.svg")); //$NON-NLS-1$
-		back.setDisabledImage(getImage(URL_DLCL, "nav_backward.png")); //$NON-NLS-1$
 		back.setToolTipText(Messages.actionWebBrowserBack);
 		back.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> back()));
 
 		forward = new ToolItem(toolbar, SWT.NONE);
 		forward.setImage(getImage(URL_ELCL, "nav_forward.svg")); //$NON-NLS-1$
 		forward.setHotImage(getImage(URL_CLCL, "nav_forward.svg")); //$NON-NLS-1$
-		forward.setDisabledImage(getImage(URL_DLCL, "nav_forward.png")); //$NON-NLS-1$
 		forward.setToolTipText(Messages.actionWebBrowserForward);
 		forward.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> forward()));
 
 		// create refresh, stop, and print actions
 		ToolItem stop = new ToolItem(toolbar, SWT.NONE);
 		stop.setImage(getImage(URL_ELCL, "nav_stop.svg")); //$NON-NLS-1$
 		stop.setHotImage(getImage(URL_CLCL, "nav_stop.svg")); //$NON-NLS-1$
-		stop.setDisabledImage(getImage(URL_DLCL, "nav_stop.png")); //$NON-NLS-1$
 		stop.setToolTipText(Messages.actionWebBrowserStop);
 		stop.addSelectionListener(SelectionListener.widgetSelectedAdapter(e -> stop()));
 
 		ToolItem refresh = new ToolItem(toolbar, SWT.DROP_DOWN);
 		refresh.setImage(getImage(URL_ELCL, "nav_refresh.svg")); //$NON-NLS-1$
 		refresh.setHotImage(getImage(URL_CLCL, "nav_refresh.svg")); //$NON-NLS-1$
-		refresh.setDisabledImage(getImage(URL_DLCL, "nav_refresh.png")); //$NON-NLS-1$
 		refresh.setToolTipText(Messages.actionWebBrowserRefresh);
 
 		// create auto-refresh action