Move app_launcher.* out of chrome/browser/extensions and into apps/

chrome/browser/extensions/app_launcher.cc

Index: chrome/browser/extensions/app_launcher.cc
diff --git a/chrome/browser/extensions/app_launcher.cc b/chrome/browser/extensions/app_launcher.cc
deleted file mode 100644
index 5ca6fbf7f277cf8aa0ef6891149616f4a416dff2..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/app_launcher.cc
+++ /dev/null
@@ -1,121 +0,0 @@
-// Copyright (c) 2013 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/extensions/app_launcher.h"
-
-#include "base/command_line.h"
-#include "base/prefs/pref_registry_simple.h"
-#include "base/prefs/pref_service.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/common/chrome_switches.h"
-#include "chrome/common/pref_names.h"
-#include "content/public/browser/browser_thread.h"
-
-#if defined(OS_WIN)
-#include "chrome/installer/launcher_support/chrome_launcher_support.h"
-#include "chrome/installer/util/browser_distribution.h"
-#endif
-
-namespace extensions {
-
-namespace {
-
-#if defined(OS_WIN)
-void UpdatePrefAndCallCallbackOnUI(
-    bool result,
-    const OnAppLauncherEnabledCompleted& completion_callback) {
-  PrefService* prefs = g_browser_process->local_state();
-  prefs->SetBoolean(prefs::kAppLauncherIsEnabled, result);
-  completion_callback.Run(result);
-}
-
-void IsAppLauncherInstalledOnBlockingPool(
-    const OnAppLauncherEnabledCompleted& completion_callback) {
-  DCHECK(content::BrowserThread::GetBlockingPool()->RunsTasksOnCurrentThread());
-  bool result = chrome_launcher_support::IsAppLauncherPresent();
-  content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
-      base::Bind(UpdatePrefAndCallCallbackOnUI, result, completion_callback));
-}
-#endif
-
-}  // namespace
-
-enum AppLauncherState {
-  APP_LAUNCHER_UNKNOWN,
-  APP_LAUNCHER_ENABLED,
-  APP_LAUNCHER_DISABLED,
-};
-
-AppLauncherState SynchronousAppLauncherChecks() {
-#if defined(USE_ASH)
-  return APP_LAUNCHER_ENABLED;
-#elif !defined(OS_WIN)
-  return APP_LAUNCHER_DISABLED;
-#else
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          switches::kShowAppListShortcut)) {
-    return APP_LAUNCHER_ENABLED;
-  }
-
-  if (!BrowserDistribution::GetDistribution()->AppHostIsSupported())
-    return APP_LAUNCHER_DISABLED;
-
-  return APP_LAUNCHER_UNKNOWN;
-#endif
-}
-
-void UpdateIsAppLauncherEnabled(
-    const OnAppLauncherEnabledCompleted& completion_callback) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
-
-  AppLauncherState state = SynchronousAppLauncherChecks();
-
-  if (state != APP_LAUNCHER_UNKNOWN) {
-    bool is_enabled = state == APP_LAUNCHER_ENABLED;
-    PrefService* prefs = g_browser_process->local_state();
-    prefs->SetBoolean(prefs::kAppLauncherIsEnabled, is_enabled);
-    completion_callback.Run(is_enabled);
-    return;
-  }
-
-#if defined(OS_WIN)
-  content::BrowserThread::PostBlockingPoolTask(
-      FROM_HERE,
-      base::Bind(&IsAppLauncherInstalledOnBlockingPool,
-                 completion_callback));
-#else
-  // SynchronousAppLauncherChecks() never returns APP_LAUNCHER_UNKNOWN on
-  // !defined(OS_WIN), so this path is never reached.
-  NOTREACHED();
-#endif
-}
-
-bool IsAppLauncherEnabled() {
-  PrefService* prefs = g_browser_process->local_state();
-  // In some tests, the prefs aren't initialised, but the NTP still needs to
-  // work.
-  if (!prefs)
-    return SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED;
-  return prefs->GetBoolean(prefs::kAppLauncherIsEnabled);
-}
-
-namespace app_launcher {
-
-void RegisterPrefs(PrefRegistrySimple* registry) {
-  // If it is impossible to synchronously determine whether the app launcher is
-  // enabled, assume it is disabled. Anything that needs to know the absolute
-  // truth should call UpdateIsAppLauncherEnabled().
-  //
-  // This pref is just a cache of the value from the registry from last time
-  // Chrome ran. To avoid having the NTP block on a registry check, it guesses
-  // that the value hasn't changed since last time it was checked, using this
-  // preference.
-  bool is_enabled = SynchronousAppLauncherChecks() == APP_LAUNCHER_ENABLED;
-  registry->RegisterBooleanPref(prefs::kAppLauncherIsEnabled, is_enabled);
-}
-
-}  // namespace app_launcher
-
-}  // namespace extensions