Refactor sudden termination

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index b9c3fc7b761494e886b4fb26ddbaa5bc0b7d4ead..716a707b6a5627da482d60b79e0e00ac7d04f8fd 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -3608,6 +3608,23 @@ bool RenderFrameImpl::exitFullscreen() {
   return true;
 }
 
+void RenderFrameImpl::suddenTerminationDisablerChanged(
+    bool present,
+    blink::WebFrameClient::SuddenTerminationDisablerType type) {
+  switch (type) {
+    case blink::WebFrameClient::BeforeUnloadHandler:
+      Send(new FrameHostMsg_BeforeUnloadHandlersPresent(
+          routing_id_, present));
+      break;
+    case blink::WebFrameClient::UnloadHandler:
+      Send(new FrameHostMsg_UnloadHandlersPresent(
+          routing_id_, present));
+      break;
+    default:
+      NOTREACHED();
+  }
+}
+
 void RenderFrameImpl::DidPlay(blink::WebMediaPlayer* player) {
   Send(new FrameHostMsg_MediaPlayingNotification(
       routing_id_, reinterpret_cast<int64>(player), player->hasVideo(),