Printe Preview: add 'More/less options' button and make non-essential sections collapsible

chrome/browser/resources/print_preview/settings/more_settings.css

Index: chrome/browser/resources/print_preview/settings/more_settings.css
diff --git a/chrome/browser/resources/print_preview/settings/more_settings.css b/chrome/browser/resources/print_preview/settings/more_settings.css
new file mode 100644
index 0000000000000000000000000000000000000000..ce34306cfdbb8e0dd2c51cf97435eb75af6a1b51
--- /dev/null
+++ b/chrome/browser/resources/print_preview/settings/more_settings.css
@@ -0,0 +1,38 @@
+/* Copyright 2014 The Chromium Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file. */
+
+#more-settings {
+  background-color: #fafafa;
+  border-bottom: 1px solid #e1e1e1;
+  border-top: 1px solid #e1e1e1;
+  margin-top: 4px;
+  min-height: 51px;
+}
+
+#more-settings .more-settings-icon {
+  background-repeat: no-repeat;
+  display: inline-block;
+  height: 11px;
+  margin: 20px 15px 20px 20px;
+  vertical-align: middle;
+  width: 11px;
+}
+
+#more-settings .more-settings-label {
+  display: inline;
+  height: 28px;
+  margin: 10px 0;
+}
+
+#more-settings .more-settings-icon-minus {
+  background-image: -webkit-image-set(
+      url('../images/1x/minus.png') 1x,
+      url('../images/2x/minus.png') 2x);
+}
+
+#more-settings .more-settings-icon-plus {
+  background-image: -webkit-image-set(
+      url('../images/1x/plus.png') 1x,
+      url('../images/2x/plus.png') 2x);
+}