Instant: Use only one hidden WebContents per profile.

chrome/browser/resources/instant/instant.js

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright 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.
 
 // Redefine '$' here rather than including 'cr.js', since this is
 // the only function needed.  This allows this file to be loaded
 // in a browser directly for layout and some testing purposes.
 var $ = function(id) { return document.getElementById(id); };
 
 /**
  * WebUI for configuring instant.* preference values used by
@@ skipping 45 matching lines @@
       input.type = field.type;
       input.id = field.key;
       input.title = "Default Value: " + field.default;
       if (field.size) input.size = field.size;
       input.min = field.min || 0;
       if (field.max) input.max = field.max;
       if (field.step) input.step = field.step;
       row.appendChild(input);
 
       var units = createElementWithClass('div', 'row-units');
-      if (field.units)
-        units.innerHTML = field.units;
+      if (field.units) units.innerHTML = field.units;
       row.appendChild(units);
 
       $('instant-form').appendChild(row);
     }
   }
 
   /**
    * Initialize the form by adding 'onChange' listeners to all fields.
    */
   function initForm() {
@@ skipping 32 matching lines @@
    * @param {string} prefName The name of the preference value being set.
    */
   function setPreferenceValue(prefName) {
     var value;
     if ($(prefName).type == 'checkbox')
       value = $(prefName).checked;
     else if ($(prefName).type == 'number')
       value = parseFloat($(prefName).value);
     else
       value = $(prefName).value;
-    chrome.send(
-        'setPreferenceValue',
-        [prefName, value]);
+    chrome.send('setPreferenceValue', [prefName, value]);
   }
 
   /**
    * Handle processing of "Reset" button.
    * Causes off form values to be updated based on current preference values.
    */
   function onReset() {
     for (var i = 0; i < FIELDS.length; i++) {
       var field = FIELDS[i];
       if ($(field.key).type == 'checkbox')
@@ skipping 58 matching lines @@
   }
 
   return {
     initialize: initialize,
     getDebugInfoResult: getDebugInfoResult,
     getPreferenceValueResult: getPreferenceValueResult
   };
 })();
 
 document.addEventListener('DOMContentLoaded', instantConfig.initialize);