Fix some instances of -Wdeprecated-copy: chrome/

Bug: 1213098
Change-Id: Ica84184de2c3c63aebbca460d1c2448bfd337632
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3056861
Auto-Submit: Peter Kasting <[email protected]>
Reviewed-by: Filip Gorski <[email protected]>
Commit-Queue: Peter Kasting <[email protected]>
Cr-Commit-Position: refs/heads/master@{#906189}
diff --git a/chrome/browser/sessions/session_restore_delegate.cc b/chrome/browser/sessions/session_restore_delegate.cc
index 268ec89..f87ab9af 100644
--- a/chrome/browser/sessions/session_restore_delegate.cc
+++ b/chrome/browser/sessions/session_restore_delegate.cc
@@ -55,8 +55,10 @@
       is_pinned_(is_pinned),
       group_(group) {}
 
-SessionRestoreDelegate::RestoredTab::RestoredTab(const RestoredTab& other) =
-    default;
+SessionRestoreDelegate::RestoredTab::RestoredTab(const RestoredTab&) = default;
+
+SessionRestoreDelegate::RestoredTab&
+SessionRestoreDelegate::RestoredTab::operator=(const RestoredTab&) = default;
 
 bool SessionRestoreDelegate::RestoredTab::operator<(
     const RestoredTab& right) const {