Moved methods that don't rely on internal state out of ChromeLauncherController.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_util.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/chrome_launcher_controller_util.h"
+
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/ui/app_list/arc/arc_app_list_prefs.h"
+#include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
+#include "chrome/browser/ui/ash/multi_user/multi_user_util.h"
+#include "chrome/browser/ui/ash/multi_user/multi_user_window_manager.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/common/pref_names.h"
+#include "components/prefs/pref_service.h"
+#include "extensions/browser/extension_registry.h"
+#include "extensions/common/extension.h"
+
+bool IsBrowserFromActiveUser(Browser* browser) {
+  // If running multi user mode with separate desktops, we have to check if the
+  // browser is from the active user.
+  if (chrome::MultiUserWindowManager::GetMultiProfileMode() !=
+      chrome::MultiUserWindowManager::MULTI_PROFILE_MODE_SEPARATED)
+    return true;
+  return multi_user_util::IsProfileFromActiveUser(browser->profile());
+}
+
+const extensions::Extension* GetExtensionForAppID(const std::string& app_id,
+                                                  Profile* profile) {
+  return extensions::ExtensionRegistry::Get(profile)->GetExtensionById(
+      app_id, extensions::ExtensionRegistry::EVERYTHING);
+}
+
+AppListControllerDelegate::Pinnable GetPinnableForAppID(
+    const std::string& app_id,
+    Profile* profile) {
+  const base::ListValue* pref =
+      profile->GetPrefs()->GetList(prefs::kPolicyPinnedLauncherApps);
+  if (!pref)
+    return AppListControllerDelegate::PIN_EDITABLE;
+  // Pinned ARC apps policy defines the package name of the apps, that must
+  // be pinned. All the launch activities of any package in policy are pinned.
+  // In turn the input parameter to this function is app_id, which
+  // is 32 chars hash. In case of ARC app this is a hash of
+  // (package name + activity). This means that we must identify the package
+  // from the hash, and check if this package is pinned by policy.
+  const ArcAppListPrefs* const arc_prefs = ArcAppListPrefs::Get(profile);
+  std::string arc_app_packege_name;
+  if (arc_prefs) {
+    std::unique_ptr<ArcAppListPrefs::AppInfo> app_info =
+        arc_prefs->GetApp(app_id);
+    if (app_info)
+      arc_app_packege_name = app_info->package_name;
+  }
+  for (size_t index = 0; index < pref->GetSize(); ++index) {
+    const base::DictionaryValue* app = nullptr;
+    std::string app_id_or_package;
+    if (pref->GetDictionary(index, &app) &&
+        app->GetString(ash::launcher::kPinnedAppsPrefAppIDPath,
+                       &app_id_or_package) &&
+        (app_id == app_id_or_package ||
+         arc_app_packege_name == app_id_or_package)) {
+      return AppListControllerDelegate::PIN_FIXED;
+    }
+  }
+  return AppListControllerDelegate::PIN_EDITABLE;
+}