Upstream Chrome on iOS source code [2/11].

ios/chrome/browser/sessions/session_util.mm

Index: ios/chrome/browser/sessions/session_util.mm
diff --git a/ios/chrome/browser/sessions/session_util.mm b/ios/chrome/browser/sessions/session_util.mm
new file mode 100644
index 0000000000000000000000000000000000000000..18a3f5cf95fcb38aaa7f49880c092f40ea5e8ac5
--- /dev/null
+++ b/ios/chrome/browser/sessions/session_util.mm
@@ -0,0 +1,22 @@
+// Copyright 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "ios/chrome/browser/sessions/session_util.h"
+
+#include "base/files/file_path.h"
+#include "base/strings/sys_string_conversions.h"
+#import "ios/chrome/browser/sessions/session_service.h"
+#include "ios/web/public/browser_state.h"
+
+namespace session_util {
+
+// Deletes the file containing the commands for the last session.
+void DeleteLastSession(web::BrowserState* browser_state) {
+  SessionServiceIOS* session_service = [SessionServiceIOS sharedService];
+  NSString* path =
+      base::SysUTF8ToNSString(browser_state->GetStatePath().value());
+  [session_service deleteLastSession:path];
+}
+
+}  // namespace session_util