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..c57759325b7f54a72fd584fe358789baaa39c543
--- /dev/null
+++ b/third_party/polymer/v0_8/bower.json
@@ -0,0 +1,18 @@
+{
+  "name": "chromium",
+  "private": true,
+  "dependencies": {
+    "polymer": "Polymer/polymer#v0.8.0-rc.7",
+    "iron-icon": "PolymerElements/iron-icon#^0.8.0",

[michaelpg, 2015/04/25 02:38:04]

Shouldn't we specify exact version numbers?

[Jeremy Klein, 2015/04/25 19:54:07]

These are still sort of in flux right now so I think allowing minor version
changes is probably a good thing until they settle down. Otherwise I think it
will be really tricky to keep track of all the version numbers as these elements
get filled out. We'll just need to pay attention when running reproduce.sh.

+    "iron-icons": "PolymerElements/iron-icons#^0.8.0",
+    "iron-iconset": "PolymerElements/iron-iconset#^0.8.0",
+    "paper-styles": "PolymerElements/paper-styles#^0.8.0",

[michaelpg, 2015/04/25 02:38:04]

Please style like the current bower.json: newline separators for logical
sections, alphabetized within sections.

[Jeremy Klein, 2015/04/25 19:54:07]

Done.

+    "paper-input": "PolymerElements/paper-input#^0.8.0",
+    "paper-button": "PolymerElements/paper-button#^0.8.0",
+    "paper-checkbox": "PolymerElements/paper-checkbox#^0.8.0",
+    "paper-menu": "PolymerElements/paper-menu#^0.8.0",
+    "paper-drawer-panel": "PolymerElements/paper-drawer-panel#^0.8.0",
+    "paper-card": "PolymerElements/paper-card#^0.8.0",
+    "paper-ripple": "PolymerElements/paper-ripple#^0.8.0"
+  }
+}