Revert "Bug 507400 - Search dialog should not be modal"

This reverts commit 472c98851d01b36a7c0d02726019bf98849fc522.

Change-Id: Ie66aa254e6b40a55fe86c4f31c3c8e06d2929c31
Signed-off-by: Lars Vogel <Lars.Vogel@vogella.com>
diff --git a/org.eclipse.search/search/org/eclipse/search/internal/ui/OpenSearchDialogAction.java b/org.eclipse.search/search/org/eclipse/search/internal/ui/OpenSearchDialogAction.java
index 90aa71d..bc93e11 100644
--- a/org.eclipse.search/search/org/eclipse/search/internal/ui/OpenSearchDialogAction.java
+++ b/org.eclipse.search/search/org/eclipse/search/internal/ui/OpenSearchDialogAction.java
@@ -10,9 +10,6 @@
  *******************************************************************************/
 package org.eclipse.search.internal.ui;
 
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Shell;
-
 import org.eclipse.jface.action.Action;
 import org.eclipse.jface.action.IAction;
 import org.eclipse.jface.viewers.ISelection;
@@ -56,17 +53,6 @@
 			SearchPlugin.beep();
 			return;
 		}
-		// search dialog already open?
-		Shell[] shells = Display.getCurrent().getShells();
-		for (Shell shell : shells) {
-			Object data = shell.getData();
-			if (data instanceof SearchDialog) {
-				shell.setActive();
-				shell.setFocus();
-				return;
-			}
-		}
-
 		SearchDialog dialog= new SearchDialog(getWorkbenchWindow(), fPageId);
 		dialog.open();
 	}
diff --git a/org.eclipse.search/search/org/eclipse/search/internal/ui/SearchDialog.java b/org.eclipse.search/search/org/eclipse/search/internal/ui/SearchDialog.java
index c01c028..fcd9e97 100644
--- a/org.eclipse.search/search/org/eclipse/search/internal/ui/SearchDialog.java
+++ b/org.eclipse.search/search/org/eclipse/search/internal/ui/SearchDialog.java
@@ -160,8 +160,6 @@
 
 	public SearchDialog(IWorkbenchWindow window, String pageId) {
 		super(window.getShell());
-		setShellStyle(SWT.RESIZE | SWT.CLOSE | SWT.MODELESS | SWT.BORDER | SWT.TITLE);
-		setBlockOnOpen(false);
 		fWorkbenchWindow= window;
 		fCurrentSelection= window.getSelectionService().getSelection();
 		fCurrentEnclosingProject= evaluateEnclosingProject(fCurrentSelection, getActiveEditor());