Use fn pipeline_id consistently, not fn pipeline

Consistently use the name 'pipeline_id' to refer to a function that
returns an (optional) PipelineId.

This was prompted by discovering both fn pipeline and fn pipeline_id
doing the same job in htmliframeelement.rs.

Note that there is fn pipeline in components/compositing/compositor.rs,
but that actually returns an Option<&CompositionPipeline>, not any kind
of PipelineId.

components/script/dom/bindings/global.rs

@@ -69,10 +69,10 @@ impl<'a> GlobalRef<'a> {
     }
 
     /// Get the `PipelineId` for this global scope.
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         match *self {
-            GlobalRef::Window(window) => window.pipeline(),
+            GlobalRef::Window(window) => window.pipeline_id(),
-            GlobalRef::Worker(worker) => worker.pipeline(),
+            GlobalRef::Worker(worker) => worker.pipeline_id(),
         }
     }
 

components/script/dom/browsingcontext.rs

@@ -152,7 +152,7 @@ impl BrowsingContext {
         old
     }
 
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         self.id
     }
 

components/script/dom/console.rs

@@ -18,7 +18,7 @@ impl Console {
         if let Some(chan) = global.devtools_chan() {
             let console_message = prepare_message(level, message);
             let devtools_message = ScriptToDevtoolsControlMsg::ConsoleAPI(
-                global.pipeline(),
+                global.pipeline_id(),
                 console_message,
                 global.get_worker_id());
             chan.send(devtools_message).unwrap();

components/script/dom/dedicatedworkerglobalscope.rs

@@ -243,7 +243,7 @@ impl DedicatedWorkerGlobalScope {
         }
     }
 
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         self.id
     }
 

components/script/dom/document.rs

@@ -641,7 +641,7 @@ impl Document {
             // Update the focus state for all elements in the focus chain.
             // https://html.spec.whatwg.org/multipage/#focus-chain
             if focus_type == FocusType::Element {
-                let event = ConstellationMsg::Focus(self.window.pipeline());
+                let event = ConstellationMsg::Focus(self.window.pipeline_id());
                 self.window.constellation_chan().send(event).unwrap();
             }
         }
@@ -661,7 +661,7 @@ impl Document {
     pub fn send_title_to_compositor(&self) {
         let window = self.window();
         window.constellation_chan()
-              .send(ConstellationMsg::SetTitle(window.pipeline(),
+              .send(ConstellationMsg::SetTitle(window.pipeline_id(),
                                                Some(String::from(self.Title()))))
               .unwrap();
     }
@@ -1367,7 +1367,7 @@ impl Document {
         // TODO: Should tick animation only when document is visible
         if !self.running_animation_callbacks.get() {
             let event = ConstellationMsg::ChangeRunningAnimationsState(
-                self.window.pipeline(),
+                self.window.pipeline_id(),
                 AnimationState::AnimationCallbacksPresent);
             self.window.constellation_chan().send(event).unwrap();
         }
@@ -1405,7 +1405,7 @@ impl Document {
         if self.animation_frame_list.borrow().is_empty() {
             mem::swap(&mut *self.animation_frame_list.borrow_mut(),
                       &mut animation_frame_list);
-            let event = ConstellationMsg::ChangeRunningAnimationsState(self.window.pipeline(),
+            let event = ConstellationMsg::ChangeRunningAnimationsState(self.window.pipeline_id(),
                                                                        AnimationState::NoAnimationCallbacksPresent);
             self.window.constellation_chan().send(event).unwrap();
         }
@@ -1469,7 +1469,7 @@ impl Document {
         let loader = self.loader.borrow();
         if !loader.is_blocked() && !loader.events_inhibited() {
             let win = self.window();
-            let msg = MainThreadScriptMsg::DocumentLoadsComplete(win.pipeline());
+            let msg = MainThreadScriptMsg::DocumentLoadsComplete(win.pipeline_id());
             win.main_thread_script_chan().send(msg).unwrap();
         }
     }
@@ -1567,7 +1567,7 @@ impl Document {
     }
 
     pub fn notify_constellation_load(&self) {
-        let pipeline_id = self.window.pipeline();
+        let pipeline_id = self.window.pipeline_id();
         let load_event = ConstellationMsg::LoadComplete(pipeline_id);
         self.window.constellation_chan().send(load_event).unwrap();
     }
@@ -1593,7 +1593,7 @@ impl Document {
         self.upcast::<Node>()
             .traverse_preorder()
             .filter_map(Root::downcast::<HTMLIFrameElement>)
-            .find(|node| node.pipeline() == Some(pipeline))
+            .find(|node| node.pipeline_id() == Some(pipeline))
     }
 
     pub fn get_dom_loading(&self) -> u64 {

components/script/dom/history.rs

@@ -38,7 +38,7 @@ impl History {
 
 impl History {
     fn traverse_history(&self, direction: TraversalDirection) {
-        let pipeline = self.window.pipeline();
+        let pipeline = self.window.pipeline_id();
         let msg = ConstellationMsg::TraverseHistory(Some(pipeline), direction);
         let _ = self.window.constellation_chan().send(msg);
     }
@@ -47,7 +47,7 @@ impl History {
 impl HistoryMethods for History {
     // https://html.spec.whatwg.org/multipage/#dom-history-length
     fn Length(&self) -> u32 {
-        let pipeline = self.window.pipeline();
+        let pipeline = self.window.pipeline_id();
         let (sender, recv) = ipc::channel().expect("Failed to create channel to send jsh length.");
         let msg = ConstellationMsg::JointSessionHistoryLength(pipeline, sender);
         let _ = self.window.constellation_chan().send(msg);

components/script/dom/htmlformelement.rs

@@ -435,7 +435,7 @@ impl HTMLFormElement {
         // Step 2
         let nav = box PlannedNavigation {
             load_data: load_data,
-            pipeline_id: window.pipeline(),
+            pipeline_id: window.pipeline_id(),
             script_chan: window.main_thread_script_chan().clone(),
             generation_id: self.generation_id.get(),
             form: Trusted::new(self)

components/script/dom/htmliframeelement.rs

@@ -133,7 +133,7 @@ impl HTMLIFrameElement {
 
         let load_info = IFrameLoadInfo {
             load_data: load_data,
-            containing_pipeline_id: window.pipeline(),
+            containing_pipeline_id: window.pipeline_id(),
             new_subpage_id: new_subpage_id,
             old_subpage_id: old_subpage_id,
             new_pipeline_id: new_pipeline_id,
@@ -213,10 +213,6 @@ impl HTMLIFrameElement {
         self.subpage_id.get()
     }
 
-    pub fn pipeline(&self) -> Option<PipelineId> {
-        self.pipeline_id.get()
-    }
-
     pub fn change_visibility_status(&self, visibility: bool) {
         if self.visibility.get() != visibility {
             self.visibility.set(visibility);
@@ -241,7 +237,7 @@ impl HTMLIFrameElement {
     pub fn iframe_load_event_steps(&self, loaded_pipeline: PipelineId) {
         // TODO(#9592): assert that the load blocker is present at all times when we
         //              can guarantee that it's created for the case of iframe.reload().
-        assert_eq!(loaded_pipeline, self.pipeline().unwrap());
+        assert_eq!(loaded_pipeline, self.pipeline_id().unwrap());
 
         // TODO A cross-origin child document would not be easily accessible
         //      from this script thread. It's unclear how to implement
@@ -423,7 +419,7 @@ pub fn Navigate(iframe: &HTMLIFrameElement, direction: TraversalDirection) -> Er
     if iframe.Mozbrowser() {
         if iframe.upcast::<Node>().is_in_doc() {
             let window = window_from_node(iframe);
-            let msg = ConstellationMsg::TraverseHistory(iframe.pipeline(), direction);
+            let msg = ConstellationMsg::TraverseHistory(iframe.pipeline_id(), direction);
             window.constellation_chan().send(msg).unwrap();
         }
 

components/script/dom/request.rs

@@ -424,7 +424,7 @@ fn net_request_from_global(global: GlobalRef,
                            url: Url,
                            is_service_worker_global_scope: bool) -> NetTraitsRequest {
     let origin = Origin::Origin(global.get_url().origin());
-    let pipeline_id = global.pipeline();
+    let pipeline_id = global.pipeline_id();
     NetTraitsRequest::new(url,
                           Some(origin),
                           is_service_worker_global_scope,

components/script/dom/serviceworkercontainer.rs

@@ -100,7 +100,7 @@ impl ServiceWorkerContainerMethods for ServiceWorkerContainer {
                                                                  script_url,
                                                                  scope_str.clone(),
                                                                  self);
-        ScriptThread::set_registration(scope, &*worker_registration, self.global().r().pipeline());
+        ScriptThread::set_registration(scope, &*worker_registration, self.global().r().pipeline_id());
         Ok(worker_registration)
     }
 }

components/script/dom/serviceworkerglobalscope.rs

@@ -285,7 +285,7 @@ impl ServiceWorkerGlobalScope {
         }
     }
 
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         self.id
     }
 

components/script/dom/serviceworkerregistration.rs

@@ -53,14 +53,14 @@ impl ServiceWorkerRegistration {
         let worker_load_origin = WorkerScriptLoadOrigin {
             referrer_url: None,
             referrer_policy: None,
-            pipeline_id: Some(global.pipeline())
+            pipeline_id: Some(global.pipeline_id())
         };
 
         let worker_id = global.get_next_worker_id();
         let init = prepare_workerscope_init(global, None);
         ScopeThings {
             script_url: script_url,
-            pipeline_id: global.pipeline(),
+            pipeline_id: global.pipeline_id(),
             init: init,
             worker_load_origin: worker_load_origin,
             devtools_chan: global.devtools_chan(),

components/script/dom/storage.rs

@@ -206,7 +206,7 @@ impl Runnable for StorageEventRunnable {
             assert!(UrlHelper::SameOrigin(&ev_url, &it_window.get_url()));
             // TODO: Such a Document object is not necessarily fully active, but events fired on such
             // objects are ignored by the event loop until the Document becomes fully active again.
-            if ev_window.pipeline() != it_window.pipeline() {
+            if ev_window.pipeline_id() != it_window.pipeline_id() {
                 storage_event.upcast::<Event>().fire(it_window.upcast());
             }
         }

components/script/dom/window.rs

@@ -331,7 +331,7 @@ impl Window {
         worker_id
     }
 
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         self.id
     }
 
@@ -472,7 +472,7 @@ impl WindowMethods for Window {
         }
 
         let (sender, receiver) = ipc::channel().unwrap();
-        self.constellation_chan().send(ConstellationMsg::Alert(self.pipeline(), s.to_string(), sender)).unwrap();
+        self.constellation_chan().send(ConstellationMsg::Alert(self.pipeline_id(), s.to_string(), sender)).unwrap();
 
         let should_display_alert_dialog = receiver.recv().unwrap();
         if should_display_alert_dialog {
@@ -1058,7 +1058,7 @@ impl Window {
         // TODO (farodin91): Raise an event to stop the current_viewport
         self.update_viewport_for_scroll(x, y);
 
-        let message = ConstellationMsg::ScrollFragmentPoint(self.pipeline(), layer_id, point, smooth);
+        let message = ConstellationMsg::ScrollFragmentPoint(self.pipeline_id(), layer_id, point, smooth);
         self.constellation_chan.send(message).unwrap();
     }
 

components/script/dom/worker.rs

@@ -85,13 +85,13 @@ impl Worker {
         let worker_load_origin = WorkerScriptLoadOrigin {
             referrer_url: None,
             referrer_policy: None,
-            pipeline_id: Some(global.pipeline())
+            pipeline_id: Some(global.pipeline_id()),
         };
 
         let (devtools_sender, devtools_receiver) = ipc::channel().unwrap();
         let worker_id = global.get_next_worker_id();
         if let Some(ref chan) = global.devtools_chan() {
-            let pipeline_id = global.pipeline();
+            let pipeline_id = global.pipeline_id();
                 let title = format!("Worker for {}", worker_url);
                 let page_info = DevtoolsPageInfo {
                     title: title,
@@ -105,7 +105,7 @@ impl Worker {
         let init = prepare_workerscope_init(global, Some(devtools_sender));
 
         DedicatedWorkerGlobalScope::run_worker_scope(
-            init, worker_url, global.pipeline(), devtools_receiver, worker.runtime.clone(), worker_ref,
+            init, worker_url, global.pipeline_id(), devtools_receiver, worker.runtime.clone(), worker_ref,
             global.script_chan(), sender, receiver, worker_load_origin, closing);
 
         Ok(worker)

components/script/dom/workerglobalscope.rs

@@ -238,7 +238,7 @@ impl LoadOrigin for WorkerGlobalScope {
         None
     }
     fn pipeline_id(&self) -> Option<PipelineId> {
-        Some(self.pipeline())
+        Some(self.pipeline_id())
     }
 }
 
@@ -410,13 +410,13 @@ impl WorkerGlobalScope {
         FileReadingTaskSource(self.script_chan())
     }
 
-    pub fn pipeline(&self) -> PipelineId {
+    pub fn pipeline_id(&self) -> PipelineId {
         let dedicated = self.downcast::<DedicatedWorkerGlobalScope>();
         let service_worker = self.downcast::<ServiceWorkerGlobalScope>();
         if let Some(dedicated) = dedicated {
-            return dedicated.pipeline();
+            return dedicated.pipeline_id();
         } else if let Some(service_worker) = service_worker {
-            return service_worker.pipeline();
+            return service_worker.pipeline_id();
         } else {
             panic!("need to implement a sender for SharedWorker")
         }

components/script/dom/xmlhttprequest.rs

@@ -278,7 +278,7 @@ impl LoadOrigin for XMLHttpRequest {
     }
     fn pipeline_id(&self) -> Option<PipelineId> {
         let global = self.global();
-        Some(global.r().pipeline())
+        Some(global.r().pipeline_id())
     }
 }
 
@@ -1189,7 +1189,7 @@ impl XMLHttpRequest {
         let decoded = charset.decode(&self.response.borrow(), DecoderTrap::Replace).unwrap();
         let document = self.new_doc(IsHTMLDocument::HTMLDocument);
         // TODO: Disable scripting while parsing
-        parse_html(document.r(), DOMString::from(decoded), wr.get_url(), ParseContext::Owner(Some(wr.pipeline())));
+        parse_html(document.r(), DOMString::from(decoded), wr.get_url(), ParseContext::Owner(Some(wr.pipeline_id())));
         document
     }
 
@@ -1200,7 +1200,10 @@ impl XMLHttpRequest {
         let decoded = charset.decode(&self.response.borrow(), DecoderTrap::Replace).unwrap();
         let document = self.new_doc(IsHTMLDocument::NonHTMLDocument);
         // TODO: Disable scripting while parsing
-        parse_xml(document.r(), DOMString::from(decoded), wr.get_url(), xml::ParseContext::Owner(Some(wr.pipeline())));
+        parse_xml(document.r(),
+                  DOMString::from(decoded),
+                  wr.get_url(),
+                  xml::ParseContext::Owner(Some(wr.pipeline_id())));
         document
     }
 

components/script/script_thread.rs

@@ -644,7 +644,7 @@ impl ScriptThread {
                 let window = context.active_window();
                 let resize_event = window.steal_resize_event();
                 match resize_event {
-                    Some(size) => resizes.push((window.pipeline(), size)),
+                    Some(size) => resizes.push((window.pipeline_id(), size)),
                     None => ()
                 }
             }
@@ -1502,7 +1502,7 @@ impl ScriptThread {
         // If root is being exited, shut down all contexts
         let context = self.root_browsing_context();
         let window = context.active_window();
-        if window.pipeline() == id {
+        if window.pipeline_id() == id {
             debug!("shutting down layout for root context {:?}", id);
             shut_down_layout(&context);
             let _ = self.constellation_chan.send(ConstellationMsg::PipelineExited(id));
@@ -1698,7 +1698,7 @@ impl ScriptThread {
         });
 
         let loader = DocumentLoader::new_with_threads(self.resource_threads.clone(),
-                                                      Some(browsing_context.pipeline()),
+                                                      Some(browsing_context.pipeline_id()),
                                                       Some(incomplete.url.clone()));
 
         let is_html_document = match metadata.content_type {
@@ -1754,7 +1754,7 @@ impl ScriptThread {
             .unwrap();
 
         // Notify devtools that a new script global exists.
-        self.notify_devtools(document.Title(), final_url.clone(), (browsing_context.pipeline(), None));
+        self.notify_devtools(document.Title(), final_url.clone(), (browsing_context.pipeline_id(), None));
 
         let is_javascript = incomplete.url.scheme() == "javascript";
         let parse_input = if is_javascript {
@@ -1818,7 +1818,7 @@ impl ScriptThread {
         }
 
         if !incomplete.is_visible {
-            self.alter_resource_utilization(browsing_context.pipeline(), false);
+            self.alter_resource_utilization(browsing_context.pipeline_id(), false);
         }
 
         context_remover.neuter();

components/script/webdriver_handlers.rs

@@ -140,7 +140,7 @@ pub fn handle_get_frame_id(context: &BrowsingContext,
         }
     };
 
-    let frame_id = window.map(|x| x.map(|x| x.pipeline()));
+    let frame_id = window.map(|x| x.map(|x| x.pipeline_id()));
     reply.send(frame_id).unwrap()
 }
 

components/webdriver_server/lib.rs

@@ -251,7 +251,7 @@ impl Handler {
         }
     }
 
-    fn pipeline(&self, frame_id: Option<FrameId>) -> WebDriverResult<PipelineId> {
+    fn pipeline_id(&self, frame_id: Option<FrameId>) -> WebDriverResult<PipelineId> {
         let interval = 20;
         let iterations = 30_000 / interval;
         let (sender, receiver) = ipc::channel().unwrap();
@@ -271,11 +271,11 @@ impl Handler {
     }
 
     fn root_pipeline(&self) -> WebDriverResult<PipelineId> {
-        self.pipeline(None)
+        self.pipeline_id(None)
     }
 
     fn frame_pipeline(&self) -> WebDriverResult<PipelineId> {
-        self.pipeline(self.session.as_ref().and_then(|session| session.frame_id))
+        self.pipeline_id(self.session.as_ref().and_then(|session| session.frame_id))
     }
 
     fn session(&self) -> WebDriverResult<&WebDriverSession> {