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

third_party/polymer/v1_0/components-chromium/iron-a11y-announcer/bower.json

Index: third_party/polymer/v1_0/components-chromium/iron-a11y-announcer/bower.json
diff --git a/third_party/polymer/v1_0/components-chromium/iron-a11y-announcer/bower.json b/third_party/polymer/v1_0/components-chromium/iron-a11y-announcer/bower.json
deleted file mode 100644
index ce802c13f435d8558a192220f1a510a24b82a6e6..0000000000000000000000000000000000000000
--- a/third_party/polymer/v1_0/components-chromium/iron-a11y-announcer/bower.json
+++ /dev/null
@@ -1,28 +0,0 @@
-{
-  "name": "iron-a11y-announcer",
-  "version": "1.0.0",
-  "description": "A singleton element that simplifies announcing text to screen readers.",
-  "keywords": [
-    "web-components",
-    "polymer",
-    "a11y",
-    "live"
-  ],
-  "authors": [
-    "The Polymer Authors"
-  ],
-  "main": "iron-a11y-announcer.html",
-  "license": "http://polymer.github.io/LICENSE.txt",
-  "dependencies": {
-    "polymer": "polymer/polymer#^1.0.0"
-  },
-  "devDependencies": {
-    "iron-component-page": "polymerelements/iron-component-page#^1.0.0",
-    "iron-test-helpers": "polymerelements/iron-test-helpers#^1.0.0",
-    "paper-button": "polymerelements/paper-button#^1.0.0",
-    "paper-styles": "polymerelements/paper-styles#^1.0.0",
-    "test-fixture": "polymerelements/test-fixture#^1.0.0",
-    "webcomponentsjs": "webcomponents/webcomponentsjs#^0.7.0",
-    "web-component-tester": "*"
-  }
-}