Index: content/common/frame_messages.h |
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h |
index aebe97582a5bcbc7bf8ec4bc6a735c80c8dd4bfa..5f7aa37933cda0e6057bcf63e0042f3c37857de2 100644 |
--- a/content/common/frame_messages.h |
+++ b/content/common/frame_messages.h |
@@ -815,6 +815,11 @@ 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, |