Update bower.json for Polymer elements and add PRESUBMIT.py

third_party/polymer/v1_0/components/paper-toast/bower.json

Index: third_party/polymer/v1_0/components/paper-toast/bower.json
diff --git a/third_party/polymer/v1_0/components/paper-toast/bower.json b/third_party/polymer/v1_0/components/paper-toast/bower.json
deleted file mode 100644
index a4fd51abfe990b133d13332223c0edd940dfd2f0..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components/paper-toast/bower.json
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  "name": "paper-toast",
-  "version": "1.0.0",
-  "description": "A material design notification toast",
-  "private": true,
-  "license": "http://polymer.github.io/LICENSE.txt",
-  "authors": [
-    "The Polymer Authors"
-  ],
-  "keywords": [
-    "web-components",
-    "polymer",
-    "toast",
-    "notification"
-  ],
-  "main": "paper-toast.html",
-  "dependencies": {
-    "paper-styles": "PolymerElements/paper-styles#^1.0.0",
-    "polymer": "Polymer/polymer#^1.0.0",
-    "iron-a11y-announcer": "polymerelements/iron-a11y-announcer#^1.0.0"
-  },
-  "devDependencies": {
-    "iron-component-page": "polymerelements/iron-component-page#^1.0.0",
-    "paper-button": "polymerelements/paper-button#^1.0.0",
-    "web-component-tester": "*",
-    "webcomponentsjs": "webcomponents/webcomponentsjs#^0.7.0"
-  }
-}