arc: Support running Arc app in shelf

chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.cc

+// 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.
+
+#include "chrome/browser/ui/ash/launcher/arc_app_window_launcher_item_controller.h"
+
+#include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
+#include "chrome/browser/ui/ash/launcher/chrome_launcher_app_menu_item_v2app.h"
+#include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
+
+ArcAppWindowLauncherItemController::ArcAppWindowLauncherItemController(
+    const std::string& app_id,
+    ChromeLauncherController* controller)
+    : AppWindowLauncherItemController(TYPE_APP, app_id, app_id, controller) {}
+
+ArcAppWindowLauncherItemController::~ArcAppWindowLauncherItemController() {}
+
+base::string16 ArcAppWindowLauncherItemController::GetTitle() {
+  ArcAppListPrefs* arc_prefs =
+      ArcAppListPrefs::Get(launcher_controller()->profile());
+  DCHECK(arc_prefs);
+  scoped_ptr<ArcAppListPrefs::AppInfo> app_info = arc_prefs->GetApp(app_id());
+  if (!app_info) {
+    NOTREACHED();
+    return base::string16();
+  }
+
+  return base::UTF8ToUTF16(app_info->name);
+}
+
+ChromeLauncherAppMenuItems
+ArcAppWindowLauncherItemController::GetApplicationList(int event_flags) {
+  ChromeLauncherAppMenuItems items =
+      AppWindowLauncherItemController::GetApplicationList(event_flags);
+  int index = 0;
+  for (WindowList::const_iterator iter = windows().begin();
+       iter != windows().end(); ++iter) {

[xiyuan, 2016/03/23 23:22:53]

nit: range loop?

[khmel, 2016/03/24 16:30:38]

Done.

+    // TODO(khmel): resolve correct icon here.
+    gfx::Image image;
+    items.push_back(new ChromeLauncherAppMenuItemV2App(
+        GetTitle(), &image, app_id(), launcher_controller(), index,
+        index == 0 /* has_leading_separator */));
+    ++index;
+  }
+  return items;
+}