Material PDF: Add required Polymer 0.8 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
index a14e0c93a64eabf44dffff82d5c35e9f932e1070..f8774a9a3180b86129d533d3c92e05107a0d48d4 100644
--- a/third_party/polymer/v0_8/bower.json
+++ b/third_party/polymer/v0_8/bower.json
@@ -4,6 +4,7 @@
   "dependencies": {
     "polymer": "Polymer/polymer#v0.8.0-rc.7",
     "polymer-externs": "PolymerLabs/polymer-externs#^0.8.0",
+    "layout": "Polymer/layout#0.8-preview",
 
     "iron-collapse": "PolymerElements/iron-collapse#^0.8.0",
     "iron-icon": "PolymerElements/iron-icon#^0.8.0",
@@ -14,6 +15,7 @@
     "paper-button": "PolymerElements/paper-button#^0.8.0",
     "paper-checkbox": "PolymerElements/paper-checkbox#^0.8.0",
     "paper-drawer-panel": "PolymerElements/paper-drawer-panel#^0.8.0",
+    "paper-fab": "PolymerElements/paper-fab#^0.8.0",
     "paper-icon-button": "PolymerElements/paper-icon-button#^0.8.0",
     "paper-input": "PolymerElements/paper-input#^0.8.0",
     "paper-item": "PolymerElements/paper-item#^0.8.0",
@@ -21,6 +23,7 @@
     "paper-ripple": "PolymerElements/paper-ripple#^0.8.0",
     "paper-styles": "PolymerElements/paper-styles#^0.8.0",
     "paper-toggle-button": "PolymerElements/paper-toggle-button#^0.8.0",
+    "paper-toolbar": "PolymerElements/paper-toolbar#^0.8.0",
 
     "more-routing": "PolymerLabs/more-routing#^0.8.0"
   }