Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/components-chromium/polymer/.bower.json

Index: third_party/polymer/v0_8/components-chromium/polymer/.bower.json
diff --git a/third_party/polymer/v0_8/components-chromium/polymer/.bower.json b/third_party/polymer/v0_8/components-chromium/polymer/.bower.json
new file mode 100644
index 0000000000000000000000000000000000000000..ed9a2441855e5ea9d2eb843d0ea520f4c7331e07
--- /dev/null
+++ b/third_party/polymer/v0_8/components-chromium/polymer/.bower.json
@@ -0,0 +1,36 @@
+{
+  "name": "polymer",
+  "version": "0.8.0-rc.7",
+  "main": [
+    "polymer.html"
+  ],
+  "license": "http://polymer.github.io/LICENSE.txt",
+  "ignore": [
+    "/.*",
+    "/test/"
+  ],
+  "authors": [
+    "The Polymer Authors (http://polymer.github.io/AUTHORS.txt)"
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Polymer/polymer.git"
+  },
+  "dependencies": {
+    "webcomponentsjs": "^0.6.0"
+  },
+  "devDependencies": {
+    "web-component-tester": "*"
+  },
+  "private": true,
+  "homepage": "https://github.com/Polymer/polymer",
+  "_release": "0.8.0-rc.7",
+  "_resolution": {
+    "type": "version",
+    "tag": "v0.8.0-rc.7",
+    "commit": "ce138bc0bb96c74421ba76bf3b5f1aa46b126569"
+  },
+  "_source": "git://github.com/Polymer/polymer.git",
+  "_target": "v0.8.0-rc.7",
+  "_originalSource": "Polymer/polymer"
+}