DevTools: Fix all outstanding JavaScript style issues.

third_party/WebKit/Source/devtools/front_end/ui/KeyboardShortcut.js

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 238 matching lines @@
 /**
  * @param {string|!WebInspector.KeyboardShortcut.Key} key
  * @return {string}
  */
 WebInspector.KeyboardShortcut._keyName = function(key)
 {
     if (typeof key === "string")
         return key.toUpperCase();
     if (typeof key.name === "string")
         return key.name;
-    return key.name[WebInspector.platform()] || key.name.other || '';
+    return key.name[WebInspector.platform()] || key.name.other || "";
 }
 
 /**
  * @param {number} keyCode
  * @param {?number} modifiers
  * @return {number}
  */
 WebInspector.KeyboardShortcut._makeKeyFromCodeAndModifiers = function(keyCode, modifiers)
 {
     return (keyCode & 255) | (modifiers << 8);
@@ skipping 28 matching lines @@
      * @param {number} m
      * @return {string}
      */
     function mapModifiers(m)
     {
         return modifiers & m ? /** @type {string} */ (modifierNames.get(m)) : "";
     }
 };
 
 WebInspector.KeyboardShortcut.SelectAll = WebInspector.KeyboardShortcut.makeKey("a", WebInspector.KeyboardShortcut.Modifiers.CtrlOrMeta);