4 files changed, 1 insertions, 78 deletions
diff --git a/dom/base/nsContentUtils.cpp b/dom/base/nsContentUtils.cpp
index a34752554..107daaede 100644
--- a/dom/base/nsContentUtils.cpp
+++ b/dom/base/nsContentUtils.cpp
@@ -9341,62 +9341,6 @@ nsContentUtils::SetScrollbarsVisibility(nsIDocShell* aDocShell, bool aVisible)
   }
 }
 
-/* static */ void
-nsContentUtils::GetPresentationURL(nsIDocShell* aDocShell, nsAString& aPresentationUrl)
-{
-  MOZ_ASSERT(aDocShell);
-
-  // Simulate receiver context for web platform test
-  if (Preferences::GetBool("dom.presentation.testing.simulate-receiver")) {
-    nsCOMPtr<nsIDocument> doc;
-
-    nsCOMPtr<nsPIDOMWindowOuter> docShellWin =
-      do_QueryInterface(aDocShell->GetScriptGlobalObject());
-    if (docShellWin) {
-      doc = docShellWin->GetExtantDoc();
-    }
-
-    if (NS_WARN_IF(!doc)) {
-      return;
-    }
-
-    nsCOMPtr<nsIURI> uri = doc->GetDocumentURI();
-    if (NS_WARN_IF(!uri)) {
-      return;
-    }
-
-    nsAutoCString uriStr;
-    uri->GetSpec(uriStr);
-    aPresentationUrl = NS_ConvertUTF8toUTF16(uriStr);
-    return;
-  }
-
-  if (XRE_IsContentProcess()) {
-    nsCOMPtr<nsIDocShellTreeItem> sameTypeRoot;
-    aDocShell->GetSameTypeRootTreeItem(getter_AddRefs(sameTypeRoot));
-    nsCOMPtr<nsIDocShellTreeItem> root;
-    aDocShell->GetRootTreeItem(getter_AddRefs(root));
-    if (sameTypeRoot.get() == root.get()) {
-      // presentation URL is stored in TabChild for the top most
-      // <iframe mozbrowser> in content process.
-      TabChild* tabChild = TabChild::GetFrom(aDocShell);
-      if (tabChild) {
-        aPresentationUrl = tabChild->PresentationURL();
-      }
-      return;
-    }
-  }
-
-  nsCOMPtr<nsILoadContext> loadContext(do_QueryInterface(aDocShell));
-  nsCOMPtr<nsIDOMElement> topFrameElement;
-  loadContext->GetTopFrameElement(getter_AddRefs(topFrameElement));
-  if (!topFrameElement) {
-    return;
-  }
-
-  topFrameElement->GetAttribute(NS_LITERAL_STRING("mozpresentation"), aPresentationUrl);
-}
-
 /* static */ nsIDocShell*
 nsContentUtils::GetDocShellForEventTarget(EventTarget* aTarget)
 {
diff --git a/dom/base/nsContentUtils.h b/dom/base/nsContentUtils.h
index e0c023fff..83ee41740 100644
--- a/dom/base/nsContentUtils.h
+++ b/dom/base/nsContentUtils.h
@@ -2680,12 +2680,6 @@ public:
   static void SetScrollbarsVisibility(nsIDocShell* aDocShell, bool aVisible);
 
   /*
-   * Return the associated presentation URL of the presented content.
-   * Will return empty string if the docshell is not in a presented content.
-   */
-  static void GetPresentationURL(nsIDocShell* aDocShell, nsAString& aPresentationUrl);
-
-  /*
    * Try to find the docshell corresponding to the given event target.
    */
   static nsIDocShell* GetDocShellForEventTarget(mozilla::dom::EventTarget* aTarget);
diff --git a/dom/base/nsFrameLoader.cpp b/dom/base/nsFrameLoader.cpp
index 79c889596..b4397d063 100644
--- a/dom/base/nsFrameLoader.cpp
+++ b/dom/base/nsFrameLoader.cpp
@@ -3102,14 +3102,6 @@ nsFrameLoader::ApplySandboxFlags(uint32_t sandboxFlags)
     // The child can only add restrictions, never remove them.
     sandboxFlags |= parentSandboxFlags;
 
-    // If this frame is a receiving browsing context, we should add
-    // sandboxed auxiliary navigation flag to sandboxFlags. See
-    // https://w3c.github.io/presentation-api/#creating-a-receiving-browsing-context
-    nsAutoString presentationURL;
-    nsContentUtils::GetPresentationURL(mDocShell, presentationURL);
-    if (!presentationURL.IsEmpty()) {
-      sandboxFlags |= SANDBOXED_AUXILIARY_NAVIGATION;
-    }
     mDocShell->SetSandboxFlags(sandboxFlags);
   }
 }
@@ -3427,11 +3419,6 @@ nsFrameLoader::GetNewTabContext(MutableTabContext* aTabContext,
   rv = PopulateUserContextIdFromAttribute(attrs);
   NS_ENSURE_SUCCESS(rv, rv);
 
-  nsAutoString presentationURLStr;
-  mOwnerContent->GetAttr(kNameSpaceID_None,
-                         nsGkAtoms::mozpresentation,
-                         presentationURLStr);
-
   nsCOMPtr<nsIDocShell> docShell = mOwnerContent->OwnerDoc()->GetDocShell();
   nsCOMPtr<nsILoadContext> parentContext = do_QueryInterface(docShell);
   NS_ENSURE_STATE(parentContext);
@@ -3459,8 +3446,7 @@ nsFrameLoader::GetNewTabContext(MutableTabContext* aTabContext,
                                containingApp,
                                showAccelerators,
                                showFocusRings,
-                               attrs,
-                               presentationURLStr);
+                               attrs);
   NS_ENSURE_STATE(tabContextUpdated);
 
   return NS_OK;
diff --git a/dom/base/nsGkAtomList.h b/dom/base/nsGkAtomList.h
index a1a0b15f9..5e08fdc20 100644
--- a/dom/base/nsGkAtomList.h
+++ b/dom/base/nsGkAtomList.h
@@ -1038,7 +1038,6 @@ GK_ATOM(predicate, "predicate")
 GK_ATOM(prefix, "prefix")
 GK_ATOM(preload, "preload")
 GK_ATOM(prerendered, "prerendered")
-GK_ATOM(mozpresentation, "mozpresentation")
 GK_ATOM(preserve, "preserve")
 GK_ATOM(preserveSpace, "preserve-space")
 GK_ATOM(preventdefault, "preventdefault")