Index: content/common/frame_messages.h |
diff --git a/content/common/frame_messages.h b/content/common/frame_messages.h |
index 8130bfc9f668cea896d89d405d08d74ce1162686..0e383a7287b610cf2c2244e173b7eaa795c31db2 100644 |
--- a/content/common/frame_messages.h |
+++ b/content/common/frame_messages.h |
@@ -510,6 +510,10 @@ IPC_STRUCT_BEGIN(FrameMsg_SerializeAsMHTML_Params) |
// If |is_last_frame| is true, then an MHTML footer will be generated. |
IPC_STRUCT_MEMBER(bool, is_last_frame) |
+ |
+ // Extra data to include in the MHTML file (used for tracking signal data). |
+ IPC_STRUCT_MEMBER(std::vector<std::string>, extra_data) |
+ |
IPC_STRUCT_END() |
// This message is used to send hittesting data from the renderer in order |