Dynamic updating recent menu for tabs from other devices.

components/browser_sync/profile_sync_service_mock.cc

Index: components/browser_sync/profile_sync_service_mock.cc
diff --git a/components/browser_sync/profile_sync_service_mock.cc b/components/browser_sync/profile_sync_service_mock.cc
index d2dd85c1d218629736bb716d5f2f347b84569a24..4102a954b0b6dc31caa01dfbe2305ee1f47129a7 100644
--- a/components/browser_sync/profile_sync_service_mock.cc
+++ b/components/browser_sync/profile_sync_service_mock.cc
@@ -18,4 +18,12 @@ ProfileSyncServiceMock::ProfileSyncServiceMock(InitParams* init_params)
 
 ProfileSyncServiceMock::~ProfileSyncServiceMock() {}
 
+sync_sessions::OpenTabsUIDelegate*
+ProfileSyncServiceMock::GetOpenTabsUIDelegate() {
+  sync_sessions::OpenTabsUIDelegate* mock_delegate =
+      GetOpenTabsUIDelegateMock();
+  return mock_delegate ? mock_delegate
+                       : ProfileSyncService::GetOpenTabsUIDelegate();
+}
+
 }  // namespace browser_sync