Correctly update the bounds of objects in the accessibility tree.

content/test/accessibility_browser_test_utils.cc

Index: content/test/accessibility_browser_test_utils.cc
diff --git a/content/test/accessibility_browser_test_utils.cc b/content/test/accessibility_browser_test_utils.cc
index ba0331c485fc84a0e910821e39473ee3d2dd3237..deb3deb0daeb94de2f0c7f5328f1622f38b36596 100644
--- a/content/test/accessibility_browser_test_utils.cc
+++ b/content/test/accessibility_browser_test_utils.cc
@@ -56,6 +56,10 @@ AccessibilityNotificationWaiter::~AccessibilityNotificationWaiter() {
 
 void AccessibilityNotificationWaiter::WaitForNotification() {
   loop_runner_->Run();
+
+  // Each loop runner can only be called once. Create a new one in case
+  // the caller wants to call this again to wait for the next notification.
+  loop_runner_ = new MessageLoopRunner();
 }
 
 const ui::AXTree& AccessibilityNotificationWaiter::GetAXTree() const {
@@ -64,7 +68,7 @@ const ui::AXTree& AccessibilityNotificationWaiter::GetAXTree() const {
 
 void AccessibilityNotificationWaiter::OnAccessibilityEvent(
     ui::AXEvent event_type, int event_target_id) {
-  if (!IsAboutBlank() && (event_to_wait_for_ == ui::AX_EVENT_NONE ||
+   if (!IsAboutBlank() && (event_to_wait_for_ == ui::AX_EVENT_NONE ||
                           event_to_wait_for_ == event_type)) {
     event_target_id_ = event_target_id;
     loop_runner_->Quit();