Import Polymer 0.8 and several key elements.

third_party/polymer/v0_8/bower.json

Index: third_party/polymer/v0_8/bower.json
diff --git a/third_party/polymer/v0_8/bower.json b/third_party/polymer/v0_8/bower.json
new file mode 100644
index 0000000000000000000000000000000000000000..69affae0c8f5104ffb01473318b9f527ed6924af
--- /dev/null
+++ b/third_party/polymer/v0_8/bower.json
@@ -0,0 +1,20 @@
+{
+  "name": "chromium",
+  "private": true,
+  "dependencies": {
+    "polymer": "Polymer/polymer#v0.8.0-rc.7",
+
+    "iron-icon": "PolymerElements/iron-icon#^0.8.0",
+    "iron-icons": "PolymerElements/iron-icons#^0.8.0",
+    "iron-iconset": "PolymerElements/iron-iconset#^0.8.0",
+
+    "paper-button": "PolymerElements/paper-button#^0.8.0",
+    "paper-card": "PolymerElements/paper-card#^0.8.0",
+    "paper-checkbox": "PolymerElements/paper-checkbox#^0.8.0",
+    "paper-drawer-panel": "PolymerElements/paper-drawer-panel#^0.8.0",
+    "paper-input": "PolymerElements/paper-input#^0.8.0",
+    "paper-menu": "PolymerElements/paper-menu#^0.8.0",
+    "paper-ripple": "PolymerElements/paper-ripple#^0.8.0",
+    "paper-styles": "PolymerElements/paper-styles#^0.8.0"
+  }
+}