Index: content/common/frame_messages.h |
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h |
index 5e159ff90f12c86e951d288c72a587eb67e3f788..3f8413b49b89f8ba7b621e582e767731e2041d2c 100644 |
--- a/content/common/frame_messages.h |
+++ b/content/common/frame_messages.h |
@@ -821,6 +821,11 @@ IPC_MESSAGE_ROUTED1(FrameMsg_SetAccessibilityMode, content::AccessibilityMode) |
// 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 or |
// container policy. |
IPC_MESSAGE_ROUTED2(FrameMsg_DidUpdateFramePolicy, |