Add examples for showing how to use systemInfo API.

chrome/common/extensions/docs/examples/api/systemInfo/manifest.json

Index: chrome/common/extensions/docs/examples/api/systemInfo/manifest.json
diff --git a/chrome/common/extensions/docs/examples/api/systemInfo/manifest.json b/chrome/common/extensions/docs/examples/api/systemInfo/manifest.json
new file mode 100644
index 0000000000000000000000000000000000000000..c327361f3248a56159a6edf1680b154ac528ab7d
--- /dev/null
+++ b/chrome/common/extensions/docs/examples/api/systemInfo/manifest.json
@@ -0,0 +1,13 @@
+{
+    "version": "0.1",

[Mihai Parparita -not on Chrome, 2012/08/27 23:47:21]

Nit: use 2-space tabs.

[Hongbo Min, 2012/08/28 01:54:03]

Done.

+    "name": "SystemInfo APIs",
+    "permissions": ["experimental"],
+    "manifest_version": 2,
+    "description": "Show how to use SystemInfo API",

[Mihai Parparita -not on Chrome, 2012/08/27 23:47:21]

Make this a bit more descriptive and say "Shows disk capacity via the SystemInfo
API"?

[Hongbo Min, 2012/08/28 01:54:03]

Done.

+    "app": {
+      "launch": {
+         "local_path": "index.html"
+       }
+    }
+
+}