Revert "Fix a crash when creating an incognito tab."

This reverts commit 8456dd86c45b03beceb1aae727699c550589193b.
Revert "Fix the problem that the layout of the suggestion drop down list does not fit to the screen width when an orientation changes."

This reverts commit d6d0d538f5da49a454bc5cf3f5ab40a3974be1a5.
Revert "Fix a crash when creating an incognito tab in the quick controls mode."

This reverts commit dddf500b45dfde62da382dd6fd982a5eeb395386.