AI 149251: Add 1.x Icon Guidelines doc and template pack.

BUG=1790234

Automated import of CL 149251

tools/droiddoc/templates/assets/android-developer-docs.css

@@ -804,6 +804,63 @@ padding:0 0 0 0em;
 
 /* End sidebox sidebar element styles */
 
+/* BEGIN image and caption styles (originally for UI Guidelines docs) */
+
+table.image-caption {
+  padding:0;
+  margin:.5em 0;
+  border:0;
+}
+
+td.image-caption-i {
+  font-size:92%;
+  padding:0;
+  margin:0;
+  border:0;
+}
+
+td.image-caption-i img {
+  padding:0 1em;
+  margin:0;
+}
+
+.image-list {
+  width:24px;
+  text-align:center;
+}
+
+.image-list .caption {
+  margin:0 2px;
+}
+
+td.image-caption-c {
+  font-size:92%;
+  padding:1em 2px 2px 2px;
+  margin:0;
+  border:0;
+  width:350px;
+}
+
+.grad-rule-top {
+background-image:url(images/grad-rule-qv.png);
+background-repeat:no-repeat;
+padding-top:1em;
+margin-top:0;
+}
+
+.image-caption-nested {
+  margin-top:0;
+  padding:0 0 0 1em;
+}
+
+.image-caption-nested td {
+  padding:0 4px 2px 0;
+  margin:0;
+  border:0;
+}
+
+/* END image and caption styles */
+
 /* table of contents */
 
 ol.toc {