Index: content/common/frame_messages.h |
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h |
index 35126af5ae7246371ac44de403868e75c78c3e96..5035cb64402bfea73afbc37a1b5dbcc617bca148 100644 |
--- a/content/common/frame_messages.h |
+++ b/content/common/frame_messages.h |
@@ -757,6 +757,11 @@ IPC_MESSAGE_ROUTED1(FrameMsg_SetAccessibilityMode, |
// Dispatch a load event in the iframe element containing this frame. |
IPC_MESSAGE_ROUTED0(FrameMsg_DispatchLoad) |
+// Sent to a subframe to control whether to collapse its the frame owner element |
+// in the embedder document, that is, to remove it from the layout as if it did |
+// not exist. |
+IPC_MESSAGE_ROUTED1(FrameMsg_Collapse, bool /* collapsed */) |
+ |
// Notifies the frame that its parent has changed the frame's sandbox flags. |
IPC_MESSAGE_ROUTED1(FrameMsg_DidUpdateSandboxFlags, blink::WebSandboxFlags) |