Add tests for IME menu private APIs.

chrome/test/data/extensions/api_test/input_method/ime_menu2/manifest.json

Index: chrome/test/data/extensions/api_test/input_method/ime_menu2/manifest.json
diff --git a/chrome/test/data/extensions/api_test/input_method/ime_menu/manifest.json b/chrome/test/data/extensions/api_test/input_method/ime_menu2/manifest.json
similarity index 57%
copy from chrome/test/data/extensions/api_test/input_method/ime_menu/manifest.json
copy to chrome/test/data/extensions/api_test/input_method/ime_menu2/manifest.json
index 68d50fcc0240bdf325ed7eb9300dc8b8330dc397..fda6bfaf2aa1b339bb51379cab06593f0b766d6e 100644
--- a/chrome/test/data/extensions/api_test/input_method/ime_menu/manifest.json
+++ b/chrome/test/data/extensions/api_test/input_method/ime_menu2/manifest.json
@@ -7,6 +7,24 @@
   "background": {
     "scripts": ["background.js"]
   },
-  "permissions": [ "inputMethodPrivate" ]
+  "permissions": [
+    "input",
+    "inputMethodPrivate"
+  ],
+  "input_components": [{
+    "name": "Test IME",
+    "type": "ime",
+    "id": "test",
+    "description": "Test",
+    "language": "en",
+    "layouts": ["us::eng"]
+  }, {
+    "name": "Test IME2",
+    "type": "ime",
+    "id": "test2",
+    "description": "Test",
+    "language": "en",
+    "layouts": ["us::eng"]
+  }]
 }