Allow omitting optional parameters for Extensions API functions

chrome/common/extensions/api/experimental.app.json

Index: chrome/common/extensions/api/experimental.app.json
diff --git a/chrome/common/extensions/api/experimental.app.json b/chrome/common/extensions/api/experimental.app.json
index a8cdc07ec9c9d82723fc69545999ab7fd723e437..c719970e7b17930e1f291fb9171826f1c44ae491 100644
--- a/chrome/common/extensions/api/experimental.app.json
+++ b/chrome/common/extensions/api/experimental.app.json
@@ -76,67 +76,6 @@
             "parameters": []
           }
         ]
-      },
-      {
-        "name": "setLaunchIcon",
-        "nodoc": true,
-        "type": "function",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "details",
-            "optional": true,
-            "properties": {
-              "extensionId": {
-                "type": "string",
-                "optional": true,
-                "description": "An optional id to do notifications for an app other than the calling app. This is just to allow prototyping with an extension that sends notifications on behalf of apps that don't support notifications yet; this will be removed before the API becomes stable."
-              }
-            }
-          },
-          {
-            "type": "object",
-            "name": "iconData",
-            "isInstanceOf": "ImageData",
-            "optional": true,
-            "additionalProperties": { "type": "any" },
-            "description": "Pixel data for an image to replace the launch icon on the New Tab Page. Must be an ImageData object (for example, from a canvas element). See http://code.google.com/chrome/webstore/docs/images.html for more details."
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "A callback when the function is complete. Any errors will be reported in <a href='extension.html#property-lastError'>chrome.extension.lastError</a>.",
-            "parameters": []
-          }
-        ]
-      },
-      {
-        "name": "resetLaunchIcon",
-        "nodoc": true,
-        "type": "function",
-        "description": "Resets the app's launch icon to its default value as specified in the manifest.json file.",
-        "parameters": [
-          {
-            "type": "object",
-            "name": "details",
-            "optional": true,
-            "properties": {
-              "extensionId": {
-                "type": "string",
-                "optional": true,
-                "description": "An optional id to do notifications for an app other than the calling app. This is just to allow prototyping with an extension that sends notifications on behalf of apps that don't support notifications yet; this will be removed before the API becomes stable."
-              }
-            }
-          },
-          {
-            "type": "function",
-            "name": "callback",
-            "optional": true,
-            "description": "A callback when the function is complete. Any errors will be reported in <a href='extension.html#property-lastError'>chrome.extension.lastError</a>.",
-            "parameters": []
-          }
-        ]
       }
     ]
   }