Clean up error handling logic for extension tab muting

chrome/common/extensions/api/tabs.json

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 [
   {
     "namespace": "tabs",
     "description": "Use the <code>chrome.tabs</code> API to interact with the browser's tab system. You can use this API to create, modify, and rearrange tabs in the browser.",
     "types": [
       {
@@ skipping 538 matching lines @@
                 "description": "Whether the tab should be selected."
               },
               "pinned": {
                 "type": "boolean",
                 "optional": true,
                 "description": "Whether the tab should be pinned."
               },
               "muted": {
                 "type": "boolean",
                 "optional": true,
-                "description": "Whether the tab should be muted."
+                "description": "Whether the tab should be muted. This is rate limited across all extensions to allow at most three attempts in fast succession; additional attempts are earned every 15 seconds."
               },
               "openerTabId": {
                 "type": "integer",
                 "minimum": 0,
                 "optional": true,
                 "description": "The ID of the tab that opened this tab. If specified, the opener tab must be in the same window as this tab."
               }
             }
           },
           {
@@ skipping 572 matching lines @@
             "tabId": {"type": "integer", "minimum": 0},
             "oldZoomFactor": {"type": "number"},
             "newZoomFactor": {"type": "number"},
             "zoomSettings": {"$ref": "ZoomSettings"}
           }
         }]
       }
     ]
   }
 ]