Index: content/common/frame_messages.h |
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h |
index c2d8c476b3220d512d45051c82d7c9e6019f13f5..a859163ad347f0698a5519fd53c6ba90192e0f7a 100644 |
--- a/content/common/frame_messages.h |
+++ b/content/common/frame_messages.h |
@@ -750,6 +750,10 @@ IPC_MESSAGE_ROUTED1(FrameMsg_SetAccessibilityMode, |
// Dispatch a load event in the iframe element containing this frame. |
IPC_MESSAGE_ROUTED0(FrameMsg_DispatchLoad) |
+// Sent to a child frame to control whether its frame owner element in the |
+// parent frame should be collapsed, i.e. removed from the layout. |
+IPC_MESSAGE_ROUTED1(FrameMsg_CollapseFrameOwner, bool /* collapsed */) |
+ |
// Notifies the frame that its parent has changed the frame's sandbox flags. |
IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateSandboxFlags, blink::WebSandboxFlags) |