Refactor sudden termination

content/common/frame_messages.h

Index: content/common/frame_messages.h
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h
index d22c70433769600ce17cc992fc158cb76d3070e9..f1641a7245ab2e3a568d10e3399f54fdf7095953 100644
--- a/content/common/frame_messages.h
+++ b/content/common/frame_messages.h
@@ -856,6 +856,14 @@ IPC_MESSAGE_ROUTED0(FrameHostMsg_DidFirstVisuallyNonEmptyPaint)
 // See the comment in chrome/browser/ui/browser.h for more details.
 IPC_MESSAGE_ROUTED1(FrameHostMsg_ToggleFullscreen, bool /* enter_fullscreen */)
 
+// Messages to signal the presence or absence of BeforeUnload or Unload handlers
+// for a frame. |present| is true if there is at least one of the concerned

[nasko, 2015/02/05 17:38:02]

nit: s/concerned//

[clamy, 2015/02/05 17:48:46]

Done.

+// handlers for the frame.
+IPC_MESSAGE_ROUTED1(FrameHostMsg_BeforeUnloadHandlersPresent,
+                    bool /* present */)
+IPC_MESSAGE_ROUTED1(FrameHostMsg_UnloadHandlersPresent,
+                    bool /* present */)
+
 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 
 // Message to show/hide a popup menu using native controls.