Bug 924893 - Add info for the value_selector to contextchange chrome event. r=yxl

dom/inputmethod/Keyboard.jsm

@@ -189,9 +189,15 @@ this.Keyboard = {
 
     let browser = Services.wm.getMostRecentWindow("navigator:browser");
 
+    // Chrome event, used also to render value selectors; that's why we need
+    // the info about choices / min / max here as well...
     browser.shell.sendChromeEvent({
       type: 'inputmethod-contextchange',
-      inputType: msg.data.type
+      inputType: msg.data.type,
+      value: msg.data.value,
+      choices: JSON.stringify(msg.data.choices),
+      min: msg.data.min,
+      max: msg.data.max
     });
   },