Bug 1444143 part 4. Remove nsIFrameLoader::GetDepthTooGreat. r=mystor

MozReview-Commit-ID: GIdz853oVd3

dom/base/nsFrameLoader.cpp

@@ -1900,13 +1900,6 @@ nsFrameLoader::DestroyComplete()
   mChildMessageManager = nullptr;
 }
 
-NS_IMETHODIMP
-nsFrameLoader::GetDepthTooGreat(bool* aDepthTooGreat)
-{
-  *aDepthTooGreat = mDepthTooGreat;
-  return NS_OK;
-}
-
 void
 nsFrameLoader::SetOwnerContent(Element* aContent)
 {

dom/base/nsIFrameLoader.idl

@@ -38,13 +38,6 @@ interface nsIFrameLoader : nsISupports
    */
   void destroy();
 
-  /**
-   * Find out whether the loader's frame is at too great a depth in
-   * the frame tree.  This can be used to decide what operations may
-   * or may not be allowed on the loader's docshell.
-   */
-  readonly attribute boolean depthTooGreat;
-
   /**
    * The default event mode automatically forwards the events
    * handled in EventStateManager::HandleCrossProcessEvent to

dom/html/nsGenericHTMLFrameElement.cpp

@@ -120,9 +120,7 @@ nsGenericHTMLFrameElement::GetContentWindow()
     return nullptr;
   }
 
-  bool depthTooGreat = false;
+  if (mFrameLoader->DepthTooGreat()) {
-  mFrameLoader->GetDepthTooGreat(&depthTooGreat);
-  if (depthTooGreat) {
     // Claim to have no contentWindow
     return nullptr;
   }