Add observatory_pub_packages snapshot to third_party

observatory_pub_packages/polymer/src/build/log_injector.css

+/** Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+    for details. All rights reserved. Use of this source code is governed by a
+    BSD-style license that can be found in the LICENSE file. **/
+.build-logs {
+  position: fixed;
+  bottom: 0;
+  right: 0;
+  max-width: 80vw;
+  z-index: 10000;
+  font-family: sans-serif !important;
+}
+.build-logs .log {
+  padding: 0.6em;
+  background: black;
+  color: white;
+  border: solid 1px #666;
+  border-bottom: 0px;
+  text-overflow: ellipsis;
+  overflow-x: hidden;
+}
+.build-logs .fine {
+  color: green;
+}
+.build-logs .info {
+  color: yellow;
+}
+.build-logs .warning {
+  color: orange;
+}
+.build-logs .error {
+  color: red;
+}
+.build-logs .message {
+  white-space: nowrap;
+  cursor: pointer;
+}
+.build-logs .message.expanded {
+  white-space: normal;
+}
+.build-logs .message a {
+  color: #CCF;
+  text-decoration: bold;
+}
+.build-logs .menu {
+  text-align: right;
+}
+.build-logs .menu div {
+  display: inline-block;
+  background: #666;
+  font-weight: bold;
+  cursor: pointer;
+  border: solid 1px black;
+  padding: 0.6em 1em;
+}
+.build-logs .menu div.active {
+  background: black;
+}
+.build-logs .menu div .num {
+  color: white;
+}
+.build-logs .content {
+  max-height: 75vh;
+  font-size: 1em;
+  overflow-y: auto;
+}
+.build-logs .content > div {
+  display: none;
+}
+.build-logs .content > div.active {
+  display: block;
+}
+
+.build-logs .content span.text {
+  padding: 0.4em 0.2em 0.2em 2em;
+  white-space: pre;
+  display: block;
+  font-family: monospace !important;
+}