Make JsEngine::Evaluate() return a wrapper for v8::Value to accessdifferent variable types easily

lib/compat.js

Index: lib/compat.js
===================================================================
--- a/lib/compat.js
+++ b/lib/compat.js
@@ -11,20 +11,19 @@
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with Adblock Plus.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 // TODO: These need to be defined properly
+var window = this;
 function XMLHttpRequest() {};
-var window = {
-  requestFileSystem: function(){}
-};
+function requestFileSystem() {};
 
 //
 // Module framework stuff
 //
 
 function require(module)
 {
   return require.scopes[module];
@@ -258,17 +257,17 @@ FakeTimer.prototype =
   {
     this.callback = callback;
     this.delay = delay;
     this.scheduleTimeout();
   },
   scheduleTimeout: function()
   {
     var me = this;
-    window.setTimeout(function()
+    setTimeout(function()
     {
       try
       {
         me.callback();
       }
       catch(e)
       {
         Cu.reportError(e);