Bug 1439016: Remove dead code from Shadow DOM v0. r=bholley

Could do that on a different bug but...

MozReview-Commit-ID: L1ri2s8z75f

--HG--
extra : rebase_source : cfdd998081cb8ef49cc5e66801fc706774f5497a

dom/base/ShadowRoot.cpp

@@ -57,7 +57,6 @@ ShadowRoot::ShadowRoot(Element* aElement, bool aClosed,
   : DocumentFragment(aNodeInfo)
   , DocumentOrShadowRoot(*this)
   , mProtoBinding(aProtoBinding)
-  , mInsertionPointChanged(false)
   , mIsComposedDocParticipant(false)
 {
   SetHost(aElement);
@@ -433,32 +432,6 @@ ShadowRoot::MaybeReassignElement(Element* aElement,
   return false;
 }
 
-void
-ShadowRoot::DistributionChanged()
-{
-  // FIXME(emilio): We could be more granular in a bunch of cases.
-  auto* host = GetHost();
-  if (!host || !host->IsInComposedDoc()) {
-    return;
-  }
-
-  auto* shell = OwnerDoc()->GetShell();
-  if (!shell) {
-    return;
-  }
-
-  shell->DestroyFramesForAndRestyle(host);
-}
-
-void
-ShadowRoot::DistributeAllNodes()
-{
-
-  //XXX Handle <slot>.
-
-  DistributionChanged();
-}
-
 Element*
 ShadowRoot::GetActiveElement()
 {
@@ -513,7 +486,7 @@ ShadowRoot::AttributeChanged(nsIDocument* aDocument,
     return;
   }
 
-  //XXX optimize this!
+  // FIXME(emilio): We could be more granular in a bunch of cases.
   shell->DestroyFramesForAndRestyle(aElement);
 }
 

dom/base/ShadowRoot.h

@@ -83,12 +83,6 @@ public:
     return &DocumentOrShadowRoot::EnsureDOMStyleSheets();
   }
 
-  /**
-   * Distributes all the explicit children of the pool host to the content
-   * insertion points in this ShadowRoot.
-   */
-  void DistributeAllNodes();
-
 private:
 
   /**
@@ -113,19 +107,10 @@ private:
   const HTMLSlotElement* UnassignSlotFor(nsIContent* aContent,
                                          const nsAString& aSlotName);
 
-  /**
-   * Called when we redistribute content after insertion points have changed.
-   */
-  void DistributionChanged();
-
-  bool IsPooledNode(nsIContent* aChild) const;
-
 public:
   void AddSlot(HTMLSlotElement* aSlot);
   void RemoveSlot(HTMLSlotElement* aSlot);
 
-  void SetInsertionPointChanged() { mInsertionPointChanged = true; }
-
   void SetAssociatedBinding(nsXBLBinding* aBinding) { mAssociatedBinding = aBinding; }
 
   JSObject* WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) override;
@@ -141,7 +126,11 @@ public:
   void SetInnerHTML(const nsAString& aInnerHTML, ErrorResult& aError);
   void StyleSheetChanged();
 
-  bool IsComposedDocParticipant() { return mIsComposedDocParticipant; }
+  bool IsComposedDocParticipant() const
+  {
+    return mIsComposedDocParticipant;
+  }
+
   void SetIsComposedDocParticipant(bool aIsComposedDocParticipant)
   {
     mIsComposedDocParticipant = aIsComposedDocParticipant;
@@ -165,12 +154,6 @@ protected:
   // owns |mProtoBinding|.
   RefPtr<nsXBLBinding> mAssociatedBinding;
 
-  // A boolean that indicates that an insertion point was added or removed
-  // from this ShadowRoot and that the nodes need to be redistributed into
-  // the insertion points. After this flag is set, nodes will be distributed
-  // on the next mutation event.
-  bool mInsertionPointChanged;
-
   // Flag to indicate whether the descendants of this shadow root are part of the
   // composed document. Ideally, we would use a node flag on nodes to
   // mark whether it is in the composed document, but we have run out of flags