Add multi-level undo/redo functions to Bookmark Manager Private API.

chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc

Index: chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
diff --git a/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc b/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
index e0b7a4e5d384e325fead39c2eec74f17d5c71a8f..aae34ee23bcea1c8f7af2a52635134630f423f16 100644
--- a/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
+++ b/chrome/browser/extensions/api/bookmark_manager_private/bookmark_manager_private_api.cc
@@ -9,6 +9,7 @@
 #include "base/memory/linked_ptr.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string_number_conversions.h"
+#include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/bookmarks/bookmark_model.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
@@ -52,10 +53,12 @@ namespace GetSubtree = api::bookmark_manager_private::GetSubtree;
 namespace manager_keys = bookmark_manager_api_constants;
 namespace GetMetaInfo = api::bookmark_manager_private::GetMetaInfo;
 namespace Paste = api::bookmark_manager_private::Paste;
+namespace RedoInfo = api::bookmark_manager_private::GetRedoInfo;
 namespace RemoveTrees = api::bookmark_manager_private::RemoveTrees;
 namespace SetMetaInfo = api::bookmark_manager_private::SetMetaInfo;
 namespace SortChildren = api::bookmark_manager_private::SortChildren;
 namespace StartDrag = api::bookmark_manager_private::StartDrag;
+namespace UndoInfo = api::bookmark_manager_private::GetUndoInfo;
 
 using content::WebContents;
 
@@ -574,4 +577,52 @@ bool BookmarkManagerPrivateRemoveTreesFunction::RunImpl() {
   return true;
 }
 
+bool BookmarkManagerPrivateUndoFunction::RunImpl() {
+#if !defined(OS_ANDROID)
+  BookmarkUndoServiceFactory::GetForProfile(GetProfile())->undo_manager()->
+      Undo();
+#endif
+
+  return true;
+}
+
+bool BookmarkManagerPrivateRedoFunction::RunImpl() {
+#if !defined(OS_ANDROID)
+  BookmarkUndoServiceFactory::GetForProfile(GetProfile())->undo_manager()->
+      Redo();
+#endif
+
+  return true;
+}
+
+bool BookmarkManagerPrivateGetUndoInfoFunction::RunImpl() {
+#if !defined(OS_ANDROID)
+  UndoManager* undo_manager =
+      BookmarkUndoServiceFactory::GetForProfile(GetProfile())->undo_manager();
+
+  UndoInfo::Results::Result result;
+  result.enabled = undo_manager->undo_count() > 0;
+  result.label = UTF16ToUTF8(undo_manager->GetUndoLabel());
+
+  results_ = UndoInfo::Results::Create(result);
+#endif  // !defined(OS_ANDROID)
+
+  return true;
+}
+
+bool BookmarkManagerPrivateGetRedoInfoFunction::RunImpl() {
+#if !defined(OS_ANDROID)
+  UndoManager* undo_manager =
+      BookmarkUndoServiceFactory::GetForProfile(GetProfile())->undo_manager();
+
+  RedoInfo::Results::Result result;
+  result.enabled = undo_manager->redo_count() > 0;
+  result.label = UTF16ToUTF8(undo_manager->GetRedoLabel());
+
+  results_ = RedoInfo::Results::Create(result);
+#endif  // !defined(OS_ANDROID)
+
+  return true;
+}
+
 }  // namespace extensions