Revert of Removing "All Bookmarks"

ios/chrome/browser/chrome_switches.cc

Index: ios/chrome/browser/chrome_switches.cc
diff --git a/ios/chrome/browser/chrome_switches.cc b/ios/chrome/browser/chrome_switches.cc
index 2f92cc5afa70e9abf97fac60813cf145e62549ed..2d4c469ee08b8a1499f6a358def0f37649fcb751 100644
--- a/ios/chrome/browser/chrome_switches.cc
+++ b/ios/chrome/browser/chrome_switches.cc
@@ -11,6 +11,9 @@
 // comments. Imagine "This switch..." at the beginning of the phrase, and it'll
 // all work out.
 // -----------------------------------------------------------------------------
+
+// Disables all bookmarks view in bookmark manager.
+const char kDisableAllBookmarksView[] = "disable-all-bookmarks-view";
 
 // Disables Contextual Search.
 const char kDisableContextualSearch[] = "disable-contextual-search";
@@ -61,6 +64,9 @@
 
 // Disables the Suggestions UI
 const char kDisableSuggestionsUI[] = "disable-suggestions-ui";
+
+// Enables all bookmarks view in bookmark manager.
+const char kEnableAllBookmarksView[] = "enable-all-bookmarks-view";
 
 // Enables Contextual Search.
 const char kEnableContextualSearch[] = "enable-contextual-search";