Allow AccessibilityHostMsg_Notifications messages to be sent from the renderer while it is swapped …

content/renderer/accessibility/renderer_accessibility_complete.cc

Index: content/renderer/accessibility/renderer_accessibility_complete.cc
diff --git a/content/renderer/accessibility/renderer_accessibility_complete.cc b/content/renderer/accessibility/renderer_accessibility_complete.cc
index c8111d3f4020848d7b3ab776a25bbe4d1d8b161d..78072a30d903e4c5faf2148020e6fb976274e043 100644
--- a/content/renderer/accessibility/renderer_accessibility_complete.cc
+++ b/content/renderer/accessibility/renderer_accessibility_complete.cc
@@ -249,6 +249,9 @@ void RendererAccessibilityComplete::SendPendingAccessibilityNotifications() {
   if (pending_notifications_.empty())
     return;
 
+  if (render_view_->is_swapped_out())
+    return;
+
   ack_pending_ = true;
 
   // Make a copy of the notifications, because it's possible that