2 files changed, 9 insertions, 0 deletions
diff --git a/components/script_traits/lib.rs b/components/script_traits/lib.rs
index 9db84516fde..b475a214cc1 100644
--- a/components/script_traits/lib.rs
+++ b/components/script_traits/lib.rs
@@ -60,6 +60,7 @@ use net_traits::{ReferrerPolicy, ResourceThreads};
 use net_traits::image::base::Image;
 use net_traits::image_cache_thread::ImageCacheThread;
 use net_traits::response::HttpsState;
+use net_traits::storage_thread::StorageType;
 use profile_traits::mem;
 use profile_traits::time as profile_time;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
@@ -244,6 +245,9 @@ pub enum ConstellationControlMsg {
         /// The pipeline that has completed loading.
         child: PipelineId,
     },
+    /// Cause a `storage` event to be dispatched at the appropriate window.
+    /// The strings are key, old value and new value.
+    DispatchStorageEvent(PipelineId, StorageType, Url, Option<String>, Option<String>, Option<String>),
     /// Notifies a parent pipeline that one of its child frames is now active.
     /// PipelineId is for the parent, FrameId is the child frame.
     FramedContentChanged(PipelineId, FrameId),
@@ -279,6 +283,7 @@ impl fmt::Debug for ConstellationControlMsg {
             TransitionEnd(..) => "TransitionEnd",
             WebFontLoaded(..) => "WebFontLoaded",
             DispatchFrameLoadEvent { .. } => "DispatchFrameLoadEvent",
+            DispatchStorageEvent(..) => "DispatchStorageEvent",
             FramedContentChanged(..) => "FramedContentChanged",
             ReportCSSError(..) => "ReportCSSError",
             Reload(..) => "Reload"
diff --git a/components/script_traits/script_msg.rs b/components/script_traits/script_msg.rs
index 7969218e5d3..434aa0011e6 100644
--- a/components/script_traits/script_msg.rs
+++ b/components/script_traits/script_msg.rs
@@ -18,6 +18,7 @@ use ipc_channel::ipc::IpcSender;
 use msg::constellation_msg::{Key, KeyModifiers, KeyState};
 use msg::constellation_msg::{PipelineId, TraversalDirection};
 use net_traits::CoreResourceMsg;
+use net_traits::storage_thread::StorageType;
 use offscreen_gl_context::{GLContextAttributes, GLLimits};
 use style_traits::cursor::Cursor;
 use style_traits::viewport::ViewportConstraints;
@@ -59,6 +60,9 @@ pub enum LogEntry {
 /// Messages from the script to the constellation.
 #[derive(Deserialize, Serialize)]
 pub enum ScriptMsg {
+    /// Broadcast a storage event to every same-origin pipeline.
+    /// The strings are key, old value and new value.
+    BroadcastStorageEvent(PipelineId, StorageType, Url, Option<String>, Option<String>, Option<String>),
     /// Indicates whether this pipeline is currently running animations.
     ChangeRunningAnimationsState(PipelineId, AnimationState),
     /// Requests that a new 2D canvas thread be created. (This is done in the constellation because