Bug 51557 [formatter] pref page - restore defaults should select "Default" profile
Clicking on "Restore Defaults" should select the "Default [built-in]" profile.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/formatter/CodingStyleConfigurationBlock.java
}
	
	private void configurePreview(Composite composite, int numColumns) {
		fJavaPreview= new CompilationUnitPreview(fProfileManager.getSelected().getSettings(), composite);
		fJavaPreview.setPreviewText(PREVIEW);
	    
		final GridData gd = new GridData(GridData.FILL_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL);
		gd.horizontalSpan = numColumns;
		gd.verticalSpan= 7;
		gd.widthHint = 0;
		gd.heightHint = 0;
		fJavaPreview.getControl().setLayoutData(gd);
	}
	protected IPreferenceStore doGetPreferenceStore() {
		return JavaPlugin.getDefault().getPreferenceStore();
	}
	
	public void performOk() {
		fProfileManager.commitChanges();
	}
	
	
	/**
	 * Get a <code>File</code> object representing the internal store file.
	 */
	protected static File getStoreFile() {
		return JavaPlugin.getDefault().getStateLocation().append(STORE_FILE).toFile();
	}
}