[DevTools] UI for network conditions emulation.

Source/devtools/front_end/ui/SettingsUI.js

 /*
  * Copyright (C) 2014 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 91 matching lines @@
         inputElement.className = "numeric";
     if (maxLength)
         inputElement.maxLength = maxLength;
     if (width)
         inputElement.style.width = width;
 
     if (validatorCallback || instant) {
         inputElement.addEventListener("change", onInput, false);
         inputElement.addEventListener("input", onInput, false);
     }
+    inputElement.addEventListener("keydown", onKeyDown, false);
 
     var errorMessageLabel;
     if (validatorCallback) {
         errorMessageLabel = p.createChild("div");
         errorMessageLabel.classList.add("field-error-message");
         validate();
     }
 
     function onInput()
     {
         if (validatorCallback)
             validate();
         if (instant)
             apply();
     }
 
+    function onKeyDown(event)
+    {
+        if (isEnterKey(event))
+            apply();
+    }
+
     function validate()
     {
         var error = validatorCallback(inputElement.value);
         if (!error)
             error = "";
         inputElement.classList.toggle("error-input", !!error);
         errorMessageLabel.textContent = error;
     }
 
     if (!instant)
@@ skipping 99 matching lines @@
 
 WebInspector.UISettingDelegate.prototype = {
     /**
      * @return {?Element}
      */
     settingElement: function()
     {
         return null;
     }
 }