MDL-16336: add Chrome to browser identification to display HMTL editor.

lib/editor/htmlarea/htmlarea.php

@@ -2371,6 +2371,7 @@ HTMLArea.is_mac_ie = (HTMLArea.is_ie && HTMLArea.is_mac);
 HTMLArea.is_win_ie = (HTMLArea.is_ie && !HTMLArea.is_mac);
 HTMLArea.is_gecko  = (navigator.product == "Gecko");
 HTMLArea.is_safari = (HTMLArea.agt.indexOf("safari") != -1);
+HTMLArea.is_webkit = (HTMLArea.agt.indexOf("applewebkit") != -1); // eg: chrome
 
 // variable used to pass the object to the popup editor window.
 HTMLArea._object = null;
@@ -2398,6 +2399,9 @@ HTMLArea.cloneObject = function(obj) {
 
 // FIXME!!! this should return false for IE < 5.5
 HTMLArea.checkSupportedBrowser = function() {
+    if (HTMLArea.is_webkit) {
+        return true;
+    }
     if (HTMLArea.is_gecko) {
         if (navigator.productSub < 20021201) {
             alert("You need at least Mozilla-1.3 Alpha.\n" +

lib/moodlelib.php

@@ -6528,6 +6528,8 @@ function can_use_html_editor() {
             return 'MSIE';
         } else if (check_browser_version('Gecko', 20030516)) {
             return 'Gecko';
+        } else if (check_browser_version('Safari', 531)) {
+            return 'AppleWebKit';
         }
     }
     return false;