Add ArcEnabled policy implementation

Hide "ARC OptIn" control from Chrome:Settings for enterprise users,
map ArcEnabled policy to ArcEnabled pref.

BUG=582440

Review URL: https://codereview.chromium.org/1684063002

Cr-Commit-Position: refs/heads/master@{#382266}

2 files changed, 12 insertions, 8 deletions

diff --git a/chromeos/dbus/fake_session_manager_client.cc b/chromeos/dbus/fake_session_manager_client.cc
index e66b15b..58ffcd7 100644
--- a/chromeos/dbus/fake_session_manager_client.cc
+++ b/chromeos/dbus/fake_session_manager_client.cc
@@ -16,8 +16,8 @@ namespace chromeos {
 FakeSessionManagerClient::FakeSessionManagerClient()
     : start_device_wipe_call_count_(0),
       notify_lock_screen_shown_call_count_(0),
-      notify_lock_screen_dismissed_call_count_(0) {
-}
+      notify_lock_screen_dismissed_call_count_(0),
+      arc_available_(false) {}
 
 FakeSessionManagerClient::~FakeSessionManagerClient() {
 }
@@ -153,19 +153,19 @@ void FakeSessionManagerClient::GetServerBackedStateKeys(
 
 void FakeSessionManagerClient::CheckArcAvailability(
     const ArcCallback& callback) {
-  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                base::Bind(callback, false));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(callback, arc_available_));
 }
 
 void FakeSessionManagerClient::StartArcInstance(const std::string& socket_path,
                                                 const ArcCallback& callback) {
-  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                base::Bind(callback, false));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(callback, arc_available_));
 }
 
 void FakeSessionManagerClient::StopArcInstance(const ArcCallback& callback) {
-  base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
-                                                base::Bind(callback, false));
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
+      FROM_HERE, base::Bind(callback, arc_available_));
 }
 
 const std::string& FakeSessionManagerClient::device_policy() const {
diff --git a/chromeos/dbus/fake_session_manager_client.h b/chromeos/dbus/fake_session_manager_client.h
index 4150091..e5b594a 100644
--- a/chromeos/dbus/fake_session_manager_client.h
+++ b/chromeos/dbus/fake_session_manager_client.h
@@ -105,6 +105,8 @@ class FakeSessionManagerClient : public SessionManagerClient {
     return notify_lock_screen_dismissed_call_count_;
   }
 
+  void set_arc_available(bool available) { arc_available_ = available; }
+
  private:
   std::string device_policy_;
   std::map<cryptohome::Identification, std::string> user_policies_;
@@ -117,6 +119,8 @@ class FakeSessionManagerClient : public SessionManagerClient {
   int notify_lock_screen_shown_call_count_;
   int notify_lock_screen_dismissed_call_count_;
 
+  bool arc_available_;
+
   DISALLOW_COPY_AND_ASSIGN(FakeSessionManagerClient);
 };