From 163a45f49546cac1c914a049f884cde914e10e5c Mon Sep 17 00:00:00 2001
From: Hiroyuki Ikezoe <hikezoe@mozilla.com>
Date: Thu, 28 Feb 2019 01:31:47 +0000
Subject: [PATCH] Bug 1531173 - Drop nsIContentViewer.scrollToNode. r=emilio

Differential Revision: https://phabricator.services.mozilla.com/D21458

--HG--
extra : moz-landing-system : lando
---
 docshell/base/nsIContentViewer.idl |  4 ----
 layout/base/nsDocumentViewer.cpp   | 22 ----------------------
 2 files changed, 26 deletions(-)

diff --git a/docshell/base/nsIContentViewer.idl b/docshell/base/nsIContentViewer.idl
index 70b0af53e4e8..cdf052efdb18 100644
--- a/docshell/base/nsIContentViewer.idl
+++ b/docshell/base/nsIContentViewer.idl
@@ -232,10 +232,6 @@ interface nsIContentViewer : nsISupports
    * Set collector for navigation timing data (load, unload events).
    */
   [noscript,notxpcom,nostdcall] void setNavigationTiming(in nsDOMNavigationTimingPtr aTiming);
-  /*
-  Scrolls to a given DOM content node. 
-  */
-  void scrollToNode(in Node node);
 
   /** The amount by which to scale all text. Default is 1.0. */
   attribute float textZoom;
diff --git a/layout/base/nsDocumentViewer.cpp b/layout/base/nsDocumentViewer.cpp
index 410bb95febbf..341793c2dc10 100644
--- a/layout/base/nsDocumentViewer.cpp
+++ b/layout/base/nsDocumentViewer.cpp
@@ -2672,28 +2672,6 @@ NS_IMETHODIMP nsDocumentViewer::SetCommandNode(nsINode* aNode) {
   return NS_OK;
 }
 
-NS_IMETHODIMP nsDocumentViewer::ScrollToNode(nsINode* aNode) {
-  NS_ENSURE_ARG(aNode);
-  NS_ENSURE_TRUE(mDocument, NS_ERROR_NOT_AVAILABLE);
-  nsCOMPtr<nsIPresShell> presShell = GetPresShell();
-
-  // Get the nsIContent interface, because that's what we need to
-  // get the primary frame
-
-  nsCOMPtr<nsIContent> content(do_QueryInterface(aNode));
-  NS_ENSURE_TRUE(content, NS_ERROR_FAILURE);
-
-  // Tell the PresShell to scroll to the primary frame of the content.
-  NS_ENSURE_SUCCESS(
-      presShell->ScrollContentIntoView(
-          content,
-          nsIPresShell::ScrollAxis(nsIPresShell::SCROLL_TOP,
-                                   nsIPresShell::SCROLL_ALWAYS),
-          nsIPresShell::ScrollAxis(), nsIPresShell::SCROLL_OVERFLOW_HIDDEN),
-      NS_ERROR_FAILURE);
-  return NS_OK;
-}
-
 void nsDocumentViewer::CallChildren(CallChildFunc aFunc, void* aClosure) {
   nsCOMPtr<nsIDocShell> docShell(mContainer);
   if (docShell) {