Remove offline copy when the URL of a bookmark is changed

components/offline_pages/offline_page_model.cc

Index: components/offline_pages/offline_page_model.cc
diff --git a/components/offline_pages/offline_page_model.cc b/components/offline_pages/offline_page_model.cc
index 14530042f5f892a163c81d0294aa9559f27111c5..906df2e19fb67637a7f217d0611ae47a43eac9e4 100644
--- a/components/offline_pages/offline_page_model.cc
+++ b/components/offline_pages/offline_page_model.cc
@@ -472,6 +472,16 @@ void OfflinePageModel::BookmarkNodeRemoved(
   MarkPageForDeletion(node->id(), base::Bind(&EmptyDeleteCallback));
 }
 
+void OfflinePageModel::BookmarkNodeChanged(
+    bookmarks::BookmarkModel* model,
+    const bookmarks::BookmarkNode* node) {
+  // BookmarkNodeChanged could be triggered if title or URL gets changed. If
+  // the latter, we need to invalidate the offline copy.
+  DCHECK(offline_pages_.count(node->id()) > 0);
+  if (offline_pages_[node->id()].url != node->url())
+    DeletePageByBookmarkId(node->id(), DeletePageCallback());
+}
+
 void OfflinePageModel::OnEnsureArchivesDirCreatedDone() {
   store_->Load(base::Bind(&OfflinePageModel::OnLoadDone,
                           weak_ptr_factory_.GetWeakPtr()));