Added background page loader component extension.

chrome/browser/resources/chromeos/backloader/manifest.json

Index: chrome/browser/resources/chromeos/backloader/manifest.json
diff --git a/chrome/browser/resources/chromeos/backloader/manifest.json b/chrome/browser/resources/chromeos/backloader/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..0dcb47c4ae2191a93002a30979213e6bd4f97d4b
--- /dev/null
+++ b/chrome/browser/resources/chromeos/backloader/manifest.json
@@ -0,0 +1,15 @@
+{
+  "name": "BackLoaderExtension",
+  "version": "1.0",
+  "manifest_version": 2,
+  "description": "Background page loader for hosted apps",
+  "background": {
+    "transient": true,
+    "persistent": false,

[Mihai Parparita -not on Chrome, 2012/08/10 17:11:02]

This is the only key that's necessary. If you see any docs that tell you to use
"transient": true, can you point them out so they can be fixed?

[zel, 2012/08/16 01:13:45]

Done.

[xiyuan, 2012/08/16 16:55:38]

Mihai seems to mean to keep "persistent" and remove "transient", right?

[zel, 2012/08/16 17:17:21]

Done.

+    "page": "background.html"
+  },
+  "permissions": [
+    "alarms",
+    "http://www.google.com/*"
+  ]
+}