Positions the launcher in the bottom left corner. Adds ShellDelegate

ui/aura_shell/launcher/launcher_types.h

Index: ui/aura_shell/launcher/launcher_types.h
diff --git a/ui/aura_shell/launcher/launcher_types.h b/ui/aura_shell/launcher/launcher_types.h
new file mode 100644
index 0000000000000000000000000000000000000000..b435fa0d3a219e85275354a6c7a41d594d6064bf
--- /dev/null
+++ b/ui/aura_shell/launcher/launcher_types.h
@@ -0,0 +1,67 @@
+// Copyright (c) 2011 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.
+
+#ifndef UI_AURA_SHELL_LAUNCHER_ENTRY_TYPES_H_
+#define UI_AURA_SHELL_LAUNCHER_ENTRY_TYPES_H_
+#pragma once
+
+#include <vector>
+
+#include "third_party/skia/include/core/SkBitmap.h"
+#include "ui/aura_shell/aura_shell_export.h"
+
+namespace aura {
+class Window;
+}
+
+namespace aura_shell {
+
+// Type the LauncherItem represents.
+enum AURA_SHELL_EXPORT LauncherItemType {
+  TYPE_TABBED,
+  TYPE_APP
+};
+
+// Represents an image in a launcher item of type TYPE_APP.
+struct AURA_SHELL_EXPORT LauncherTabbedImage {
+  LauncherTabbedImage() : user_data(NULL) {}
+  LauncherTabbedImage(const SkBitmap& image, void* user_data)
+      : image(image),
+        user_data(user_data) {
+  }
+
+  // The image to show.
+  SkBitmap image;
+
+  // Used to identify the image.
+  void* user_data;
+};
+
+typedef std::vector<LauncherTabbedImage> LauncherTabbedImages;
+
+struct AURA_SHELL_EXPORT LauncherItem {
+  LauncherItem() : type(TYPE_TABBED), window(NULL), user_data(NULL) {}
+  LauncherItem(LauncherItemType type,
+               aura::Window* window,
+               void* user_data)
+      : type(type),
+        window(window),
+        user_data(user_data) {}
+
+  LauncherItemType type;
+  aura::Window* window;
+  void* user_data;
+
+  // Image to display in the launcher if the item is of type TYPE_APP.
+  SkBitmap app_image;
+
+  // Image to display in the launcher if the item is of type TYPE_TABBED.
+  LauncherTabbedImages tab_images;
+};
+
+typedef std::vector<LauncherItem> LauncherItems;
+
+}  // namespace aura_shell
+
+#endif  // UI_AURA_SHELL_LAUNCHER_ENTRY_TYPES_H_