Add tests for File System URLs with the file:// origin.

chrome/test/data/extensions/api_test/file_browser/filesystem_file_origin_url/manifest.json

Index: chrome/test/data/extensions/api_test/file_browser/filesystem_file_origin_url/manifest.json
diff --git a/chrome/test/data/extensions/api_test/file_browser/app_file_handler_multi/manifest.json b/chrome/test/data/extensions/api_test/file_browser/filesystem_file_origin_url/manifest.json
similarity index 62%
copy from chrome/test/data/extensions/api_test/file_browser/app_file_handler_multi/manifest.json
copy to chrome/test/data/extensions/api_test/file_browser/filesystem_file_origin_url/manifest.json
index fa402c403b5def939a0b55f4e2ad5691f185f552..41d5662824e91aba678467f6da5a73ee3b861ad8 100644
--- a/chrome/test/data/extensions/api_test/file_browser/app_file_handler_multi/manifest.json
+++ b/chrome/test/data/extensions/api_test/file_browser/filesystem_file_origin_url/manifest.json
@@ -1,22 +1,18 @@
 {
   "key": "MIGdMA0GCSqGSIb3DQEBAQUAA4GLADCBhwKBgQChptAQ0n4R56N03nWQ1ogR7DVRBjGo80Vw6G9KLjzZv44D8rq5Q5IkeQrtKgWyZfXevlsCe3LaLo18rcz8iZx6lK2xhLdUR+ORjsjuBfdEL5a5cWeRTSxf75AcqndQsmpwMBdrMTCZ8jQNusUI+XlrihLNNJuI5TM4vNINI5bYFQIBIw==",
-  "name": "ChromeOS File handler extension",
+  "name": "Test for file system urls having file scheme.",
   "version": "0.1",
   "manifest_version": 2,
-  "description": "Tests of the file handler for multiple items",
   "app": {
     "background": {
-      "scripts": ["test.js"]
-    }
-  },
-  "file_handlers": {
-    "textAction": {
-      "extensions": ["txt"]
+      "scripts": ["background.js"]
     }
   },
   "permissions": [
     "fileBrowserPrivate",
     "fileBrowserHandler",
-    "unlimitedStorage"
+    "unlimitedStorage",
+    "filesystem:*",
+    "file:///*"
   ]
 }