Bug 1578624 - P5: Add DisplayLoadError to BrowsingContext. r=kmag

Differential Revision: https://phabricator.services.mozilla.com/D44761

--HG--
extra : moz-landing-system : lando

docshell/base/BrowsingContext.cpp

@@ -837,6 +837,22 @@ nsresult BrowsingContext::LoadURI(BrowsingContext* aAccessor,
   return NS_OK;
 }
 
+void BrowsingContext::DisplayLoadError(const nsAString& aURI) {
+  MOZ_LOG(GetLog(), LogLevel::Debug, ("DisplayLoadError"));
+  MOZ_DIAGNOSTIC_ASSERT(!IsDiscarded());
+  MOZ_DIAGNOSTIC_ASSERT(mDocShell || XRE_IsParentProcess());
+
+  if (mDocShell) {
+    bool didDisplayLoadError = false;
+    mDocShell->DisplayLoadError(NS_ERROR_MALFORMED_URI, nullptr,
+                                PromiseFlatString(aURI).get(), nullptr,
+                                &didDisplayLoadError);
+  } else {
+    Unused << Canonical()->GetCurrentWindowGlobal()->SendDisplayLoadError(
+        PromiseFlatString(aURI));
+  }
+}
+
 void BrowsingContext::Close(CallerType aCallerType, ErrorResult& aError) {
   // FIXME We need to set mClosed, but only once we're sending the
   //       DOMWindowClose event (which happens in the process where the

docshell/base/BrowsingContext.h

@@ -188,6 +188,8 @@ class BrowsingContext : public nsWrapperCache, public BrowsingContextBase {
   nsresult LoadURI(BrowsingContext* aAccessor, nsDocShellLoadState* aLoadState,
                    bool aSetNavigating = false);
 
+  void DisplayLoadError(const nsAString& aURI);
+
   // Determine if the current BrowsingContext was 'cached' by the logic in
   // CacheChildren.
   bool IsCached();

dom/ipc/PWindowGlobal.ipdl

@@ -62,6 +62,8 @@ child:
 
   async LoadURIInChild(nsDocShellLoadState aLoadState, bool aSetNavigating);
 
+  async DisplayLoadError(nsString aURI);
+
 both:
   async RawMessage(JSWindowActorMessageMeta aMetadata, ClonedMessageData aData);
 

dom/ipc/WindowGlobalChild.cpp

@@ -242,6 +242,16 @@ mozilla::ipc::IPCResult WindowGlobalChild::RecvLoadURIInChild(
   return IPC_OK();
 }
 
+mozilla::ipc::IPCResult WindowGlobalChild::RecvDisplayLoadError(
+    const nsAString& aURI) {
+  bool didDisplayLoadError = false;
+  mWindowGlobal->GetDocShell()->DisplayLoadError(
+      NS_ERROR_MALFORMED_URI, nullptr, PromiseFlatString(aURI).get(), nullptr,
+      &didDisplayLoadError);
+  mWindowGlobal->GetBrowserChild()->NotifyNavigationFinished();
+  return IPC_OK();
+}
+
 static nsresult ChangeFrameRemoteness(WindowGlobalChild* aWgc,
                                       BrowsingContext* aBc,
                                       const nsString& aRemoteType,

dom/ipc/WindowGlobalChild.h

@@ -117,6 +117,8 @@ class WindowGlobalChild final : public WindowGlobalActor,
   mozilla::ipc::IPCResult RecvLoadURIInChild(nsDocShellLoadState* aLoadState,
                                              bool aSetNavigating);
 
+  mozilla::ipc::IPCResult RecvDisplayLoadError(const nsAString& aURI);
+
   mozilla::ipc::IPCResult RecvChangeFrameRemoteness(
       dom::BrowsingContext* aBc, const nsString& aRemoteType,
       uint64_t aPendingSwitchId, ChangeFrameRemotenessResolver&& aResolver);