Fix HTML IDs on the uploader buttons on the dashboard, props SergeyBiryukov, see #17144

git-svn-id: http://svn.automattic.com/wordpress/trunk@18555 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/dashboard.php

@@ -532,7 +532,7 @@ function wp_dashboard_quick_press() {
 
 		<?php if ( current_user_can( 'upload_files' ) ) : ?>
 		<div id="media-buttons" class="hide-if-no-js wp-media-buttons">
-			<?php do_action( 'media_buttons' ); ?>
+			<?php do_action( 'media_buttons', 'content' ); ?>
 		</div>
 		<?php endif; ?>