Apply content-security-policy to the HTML options page. This is a

chrome/browser/resources/options/font_settings.js

-// Copyright (c) 2011 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.
-
-cr.define('options', function() {
-
-  var OptionsPage = options.OptionsPage;
-
-  /**
-   * FontSettings class
-   * Encapsulated handling of the 'Fonts and Encoding' page.
-   * @class
-   */
-  function FontSettings() {
-    OptionsPage.call(this,
-                     'fonts',
-                     templateData.fontSettingsPageTabTitle,
-                     'font-settings');
-  }
-
-  cr.addSingletonGetter(FontSettings);
-
-  FontSettings.prototype = {
-    __proto__: OptionsPage.prototype,
-
-    /**
-     * Initialize the page.
-     */
-    initializePage: function() {
-      OptionsPage.prototype.initializePage.call(this);
-
-      var standardFontRange = $('standard-font-size');
-      standardFontRange.valueMap = [9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 20,
-          22, 24, 26, 28, 30, 32, 34, 36, 40, 44, 48, 56, 64, 72];
-      standardFontRange.continuous = false;
-      standardFontRange.notifyChange = this.standardRangeChanged_.bind(this);
-
-      var minimumFontRange = $('minimum-font-size');
-      minimumFontRange.valueMap = [6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
-          18, 20, 22, 24];
-      minimumFontRange.continuous = false;
-      minimumFontRange.notifyChange = this.minimumRangeChanged_.bind(this);
-      minimumFontRange.notifyPrefChange =
-          this.minimumFontSizeChanged_.bind(this);
-
-      var placeholder = localStrings.getString('fontSettingsPlaceholder');
-      $('standard-font-family').appendChild(new Option(placeholder));
-      $('serif-font-family').appendChild(new Option(placeholder));
-      $('sans-serif-font-family').appendChild(new Option(placeholder));
-      $('fixed-font-family').appendChild(new Option(placeholder));
-      $('font-encoding').appendChild(new Option(placeholder));
-    },
-
-    /**
-     * Called by the options page when this page has been shown.
-     */
-    didShowPage: function() {
-      // The fonts list may be large so we only load it when this page is
-      // loaded for the first time.  This makes opening the options window
-      // faster and consume less memory if the user never opens the fonts
-      // dialog.
-      if (!this.hasShown) {
-        chrome.send('fetchFontsData');
-        this.hasShown = true;
-      }
-    },
-
-    /**
-     * Called as the user changes the standard font size.  This allows for
-     * reflecting the change in the UI before the preference has been changed.
-     * @param {Element} el The slider input element.
-     * @param {number} value The mapped value currently set by the slider.
-     * @private
-     */
-    standardRangeChanged_: function(el, value) {
-      var fontSampleEl = $('standard-font-sample');
-      this.setUpFontSample_(fontSampleEl, value, fontSampleEl.style.fontFamily,
-                            true);
-
-      fontSampleEl = $('serif-font-sample');
-      this.setUpFontSample_(fontSampleEl, value, fontSampleEl.style.fontFamily,
-                            true);
-
-      fontSampleEl = $('sans-serif-font-sample');
-      this.setUpFontSample_(fontSampleEl, value, fontSampleEl.style.fontFamily,
-                            true);
-    },
-
-    /**
-     * Called as the user changes the miniumum font size.  This allows for
-     * reflecting the change in the UI before the preference has been changed.
-     * @param {Element} el The slider input element.
-     * @param {number} value The mapped value currently set by the slider.
-     * @private
-     */
-    minimumRangeChanged_: function(el, value) {
-      var fontSampleEl = $('minimum-font-sample');
-      this.setUpFontSample_(fontSampleEl, value, fontSampleEl.style.fontFamily,
-                            true);
-    },
-
-    /**
-     * Sets the 'minimum_logical_font_size' preference when the minimum font
-     * size has been changed by the user.
-     * @param {Element} el The slider input element.
-     * @param {number} value The mapped value that has been saved.
-     * @private
-     */
-    minimumFontSizeChanged_: function(el, value) {
-      Preferences.setIntegerPref('webkit.webprefs.minimum_logical_font_size',
-          value, '');
-    },
-
-    /**
-     * Sets the text, font size and font family of the sample text.
-     * @param {Element} el The div containing the sample text.
-     * @param {number} size The font size of the sample text.
-     * @param {string} font The font family of the sample text.
-     * @param {bool} showSize True if the font size should appear in the sample.
-     * @private
-     */
-    setUpFontSample_: function(el, size, font, showSize) {
-      var prefix = showSize ? (size + ': ') : '';
-      el.textContent = prefix +
-          localStrings.getString('fontSettingsLoremIpsum');
-      el.style.fontSize = size + 'px';
-      if (font)
-        el.style.fontFamily = font;
-    },
-
-    /**
-     * Populates a select list and selects the specified item.
-     * @param {Element} element The select element to populate.
-     * @param {Array} items The array of items from which to populate.
-     * @param {string} selectedValue The selected item.
-     * @private
-     */
-    populateSelect_: function(element, items, selectedValue) {
-      // Remove any existing content.
-      element.textContent = '';
-
-      // Insert new child nodes into select element.
-      var value, text, selected, option;
-      for (var i = 0; i < items.length; i++) {
-        value = items[i][0];
-        text = items[i][1];
-        if (text) {
-          selected = value == selectedValue;
-          element.appendChild(new Option(text, value, false, selected));
-        } else {
-          element.appendChild(document.createElement('hr'));
-        }
-      }
-
-      // Enable if not a managed pref.
-      if (!element.managed)
-        element.disabled = false;
-    }
-  };
-
-  // Chrome callbacks
-  FontSettings.setFontsData = function(fonts, encodings, selectedValues) {
-    FontSettings.getInstance().populateSelect_($('standard-font-family'), fonts,
-                                               selectedValues[0]);
-    FontSettings.getInstance().populateSelect_($('serif-font-family'), fonts,
-                                               selectedValues[1]);
-    FontSettings.getInstance().populateSelect_($('sans-serif-font-family'),
-                                               fonts, selectedValues[2]);
-    FontSettings.getInstance().populateSelect_($('fixed-font-family'), fonts,
-                                               selectedValues[3]);
-    FontSettings.getInstance().populateSelect_($('font-encoding'), encodings,
-                                               selectedValues[4]);
-  };
-
-  FontSettings.setUpStandardFontSample = function(font, size) {
-    FontSettings.getInstance().setUpFontSample_($('standard-font-sample'), size,
-                                                font, true);
-  };
-
-  FontSettings.setUpSerifFontSample = function(font, size) {
-    FontSettings.getInstance().setUpFontSample_($('serif-font-sample'), size,
-                                                font, true);
-  };
-
-  FontSettings.setUpSansSerifFontSample = function(font, size) {
-    FontSettings.getInstance().setUpFontSample_($('sans-serif-font-sample'),
-                                                size, font, true);
-  };
-
-  FontSettings.setUpFixedFontSample = function(font, size) {
-    FontSettings.getInstance().setUpFontSample_($('fixed-font-sample'),
-                                                size, font, false);
-  };
-
-  FontSettings.setUpMinimumFontSample = function(size) {
-    // If size is less than 6, represent it as six in the sample to account
-    // for the minimum logical font size.
-    if (size < 6)
-      size = 6;
-    FontSettings.getInstance().setUpFontSample_($('minimum-font-sample'), size,
-                                                null, true);
-  };
-
-  // Export
-  return {
-    FontSettings: FontSettings
-  };
-});
-