added scss files

chrome/common/extensions/docs/static/sass/_grid.scss

+// Adapted from chrome.com
+
+@import "vars";
+@import "mixins";
+
+
+.g-section:after {
+  content: ".";
+  display: block;
+  height: 0;
+  clear: both;
+  visibility: hidden;
+}
+.g-unit .g-section:after {
+  clear:none
+}
+.g-unit .g-section {
+  width: 100%;
+  overflow: hidden;
+}
+.g-section,.g-unit {
+  zoom: 1;
+}
+.g-split > .g-unit {
+  float: right;
+  text-align: right;
+}
+.g-split > .g-first {
+  float: left;
+  text-align: left;
+}
+
+.g-tpl-160 .g-unit,.g-unit .g-tpl-160 .g-unit,.g-unit .g-unit .g-tpl-160 .g-unit,.g-unit .g-unit .g-unit .g-tpl-160 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-160 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-160 .g-unit {
+display:block;margin:0 0 0 160px;width:auto;float:none 
+}
+.g-tpl-160 .g-first,.g-unit .g-tpl-160 .g-first,.g-unit .g-unit .g-tpl-160 .g-first,.g-unit .g-unit .g-unit .g-tpl-160 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-160 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-160 .g-first {
+display:block;margin:0;width:160px;float:left 
+}
+.g-tpl-25-75 .g-unit,.g-unit .g-tpl-25-75 .g-unit,.g-unit .g-unit .g-tpl-25-75 .g-unit,.g-unit .g-unit .g-unit .g-tpl-25-75 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-25-75 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-25-75 .g-unit {
+width:74.999%;float:right;display:inline;margin:0 
+}
+.g-tpl-25-75 .g-first,.g-unit .g-tpl-25-75 .g-first,.g-unit .g-unit .g-tpl-25-75 .g-first,.g-unit .g-unit .g-unit .g-tpl-25-75 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-25-75 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-25-75 .g-first {
+width:24.999%;float:left;display:inline;margin:0 
+}
+.g-tpl-75-25 .g-unit,.g-unit .g-tpl-75-25 .g-unit,.g-unit .g-unit .g-tpl-75-25 .g-unit,.g-unit .g-unit .g-unit .g-tpl-75-25 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-75-25 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-75-25 .g-unit {
+width:24.999%;float:right;display:inline;margin:0 
+}
+.g-tpl-75-25 .g-first,.g-unit .g-tpl-75-25 .g-first,.g-unit .g-unit .g-tpl-75-25 .g-first,.g-unit .g-unit .g-unit .g-tpl-75-25 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-75-25 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-75-25 .g-first {
+width:74.999%;float:left;display:inline;margin:0 
+}
+.g-tpl-33-67 .g-unit,.g-unit .g-tpl-33-67 .g-unit,.g-unit .g-unit .g-tpl-33-67 .g-unit,.g-unit .g-unit .g-unit .g-tpl-33-67 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-33-67 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-33-67 .g-unit {
+width:66.999%;float:right;display:inline;margin:0 
+}
+.g-tpl-33-67 .g-first,.g-unit .g-tpl-33-67 .g-first,.g-unit .g-unit .g-tpl-33-67 .g-first,.g-unit .g-unit .g-unit .g-tpl-33-67 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-33-67 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-33-67 .g-first {
+width:32.999%;float:left;display:inline;margin:0 
+}
+.g-tpl-67-33 .g-unit,.g-unit .g-tpl-67-33 .g-unit,.g-unit .g-unit .g-tpl-67-33 .g-unit,.g-unit .g-unit .g-unit .g-tpl-67-33 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-67-33 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-67-33 .g-unit {
+width:32.999%;float:right;display:inline;margin:0 
+}
+.g-tpl-67-33 .g-first,.g-unit .g-tpl-67-33 .g-first,.g-unit .g-unit .g-tpl-67-33 .g-first,.g-unit .g-unit .g-unit .g-tpl-67-33 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-67-33 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-67-33 .g-first {
+width:66.999%;float:left;display:inline;margin:0 
+}
+.g-tpl-50-50 .g-unit,.g-unit .g-tpl-50-50 .g-unit,.g-unit .g-unit .g-tpl-50-50 .g-unit,.g-unit .g-unit .g-unit .g-tpl-50-50 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-50-50 .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-50-50 .g-unit {
+width:49.999%;float:right;display:inline;margin:0 
+}
+.g-tpl-50-50 .g-first,.g-unit .g-tpl-50-50 .g-first,.g-unit .g-unit .g-tpl-50-50 .g-first,.g-unit .g-unit .g-unit .g-tpl-50-50 .g-first,.g-unit .g-unit .g-unit .g-unit .g-tpl-50-50 .g-first,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-50-50 .g-first {
+width:49.999%;float:left;display:inline;margin:0 
+}
+.g-tpl-nest .g-unit
+/*,.g-unit .g-tpl-nest .g-unit,.g-unit .g-unit .g-tpl-nest .g-unit,.g-unit .g-unit .g-unit .g-tpl-nest .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-nest .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-nest .g-unit {*/ {
+float:left;width:auto;display:inline;margin:0 }
+.g-tpl-nest-alt .g-unit
+/*,.g-unit .g-tpl-nest-alt .g-unit,.g-unit .g-unit .g-tpl-nest-alt .g-unit,.g-unit .g-unit .g-unit .g-tpl-nest-alt .g-unit,.g-unit .g-unit .g-unit .g-unit .g-tpl-nest-alt .g-unit,.g-unit .g-unit .g-unit .g-unit .g-unit .g-tpl-nest-alt .g-unit*/ {
+float:right;width:auto;display:inline;margin:0 }
+
+.g-content {
+  margin-right: 30px;
+}
+
+.g-last .g-content {
+  margin-right: 0;
+}
+
+// Phone
+@media only screen and (max-width: $break-small)  { 
+  .g-unit {
+    &.g-unit {
+      float: none !important;
+    }
+  }
+  .g-content {
+    margin-right: 0;
+  }
+}