Upstream ios/showcase source code.

ios/showcase/core/showcase_model.mm

Index: ios/showcase/core/showcase_model.mm
diff --git a/ios/showcase/core/showcase_model.mm b/ios/showcase/core/showcase_model.mm
new file mode 100644
index 0000000000000000000000000000000000000000..158a897fa5ed4bb44e620cb3d68f66b5735f7043
--- /dev/null
+++ b/ios/showcase/core/showcase_model.mm
@@ -0,0 +1,42 @@
+// Copyright 2016 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.
+
+#import "ios/showcase/core/showcase_model.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+@implementation ShowcaseModel
+
+// Insert additional rows in this array. All rows will be sorted upon
+// import into Showcase.
+// |kShowcaseClassForDisplayKey| and |kShowcaseClassForInstantiationKey| are
+// required. |kShowcaseUseCaseKey| is optional.
++ (NSArray<showcase::ModelRow*>*)model {
+  return @[
+    @{
+      showcase::kClassForDisplayKey : @"SettingsViewController",
+      showcase::kClassForInstantiationKey : @"SettingsCoordinator",
+      showcase::kUseCaseKey : @"Main settings screen",
+    },
+    @{
+      showcase::kClassForDisplayKey : @"MenuViewController",
+      showcase::kClassForInstantiationKey : @"MenuViewController",
+      showcase::kUseCaseKey : @"Tools menu",
+    },
+    @{
+      showcase::kClassForDisplayKey : @"UITableViewCell",
+      showcase::kClassForInstantiationKey : @"UIKitTableViewCellViewController",
+      showcase::kUseCaseKey : @"UIKit Table Cells",
+    },
+    @{
+      showcase::kClassForDisplayKey : @"TabGridViewController",
+      showcase::kClassForInstantiationKey : @"SCTabGridCoordinator",
+      showcase::kUseCaseKey : @"Tab grid",
+    },
+  ];
+}
+
+@end