Implement history state

1 files changed, 5 insertions, 2 deletions

diff --git a/components/script_traits/lib.rs b/components/script_traits/lib.rs
index c65ad10be4b..d270d87a50c 100644
--- a/components/script_traits/lib.rs
+++ b/components/script_traits/lib.rs
@@ -48,8 +48,8 @@ use hyper::method::Method;
 use ipc_channel::{Error as IpcError};
 use ipc_channel::ipc::{IpcReceiver, IpcSender};
 use libc::c_void;
-use msg::constellation_msg::{BrowsingContextId, TopLevelBrowsingContextId, Key, KeyModifiers, KeyState};
-use msg::constellation_msg::{PipelineId, PipelineNamespaceId, TraversalDirection};
+use msg::constellation_msg::{BrowsingContextId, HistoryStateId, Key, KeyModifiers, KeyState, PipelineId};
+use msg::constellation_msg::{PipelineNamespaceId, TraversalDirection, TopLevelBrowsingContextId};
 use net_traits::{FetchResponseMsg, ReferrerPolicy, ResourceThreads};
 use net_traits::image::base::Image;
 use net_traits::image::base::PixelFormat;
@@ -289,6 +289,8 @@ pub enum ConstellationControlMsg {
     /// Updates the current pipeline ID of a given iframe.
     /// First PipelineId is for the parent, second is the new PipelineId for the frame.
     UpdatePipelineId(PipelineId, BrowsingContextId, PipelineId, UpdatePipelineIdReason),
+    /// Updates the history state of a given pipeline.
+    UpdateHistoryStateId(PipelineId, Option<HistoryStateId>),
     /// Set an iframe to be focused. Used when an element in an iframe gains focus.
     /// PipelineId is for the parent, BrowsingContextId is for the nested browsing context
     FocusIFrame(PipelineId, BrowsingContextId),
@@ -343,6 +345,7 @@ impl fmt::Debug for ConstellationControlMsg {
             Navigate(..) => "Navigate",
             PostMessage(..) => "PostMessage",
             UpdatePipelineId(..) => "UpdatePipelineId",
+            UpdateHistoryStateId(..) => "UpdateHistoryStateId",
             FocusIFrame(..) => "FocusIFrame",
             WebDriverScriptCommand(..) => "WebDriverScriptCommand",
             TickAllAnimations(..) => "TickAllAnimations",