Adds AccessControlManager and wires up user ids

The AccessControlManager is used to tell mus the active user.

BUG=577274
TEST=bot only change
R=ben@chromium.org

Review URL: https://codereview.chromium.org/1781733002

Cr-Commit-Position: refs/heads/master@{#380276}

4 files changed, 20 insertions, 5 deletions

diff --git a/mash/init/BUILD.gn b/mash/init/BUILD.gn
index 010fb38..adb69cd 100644
--- a/mash/init/BUILD.gn
+++ b/mash/init/BUILD.gn
@@ -20,6 +20,7 @@ mojo_native_application("init") {
     ":manifest",
     "//base",
     "//components/mus/public/cpp",
+    "//components/mus/public/interfaces",
     "//mash/init/public/interfaces",
     "//mojo/public/cpp/bindings",
     "//mojo/services/tracing/public/cpp",
diff --git a/mash/init/init.cc b/mash/init/init.cc
index 98aea78..55c5d7a 100644
--- a/mash/init/init.cc
+++ b/mash/init/init.cc
@@ -6,13 +6,14 @@
 
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/guid.h"
 #include "mojo/shell/public/cpp/connection.h"
 #include "mojo/shell/public/cpp/connector.h"
 
 namespace mash {
 namespace init {
 
-Init::Init() : connector_(nullptr) {}
+Init::Init() : connector_(nullptr), login_user_id_(base::GenerateGUID()) {}
 Init::~Init() {}
 
 void Init::Initialize(mojo::Connector* connector,
@@ -20,11 +21,14 @@ void Init::Initialize(mojo::Connector* connector,
                       uint32_t id) {
   connector_ = connector;
   mus_connection_ = connector_->Connect("mojo:mus");
+  mus_connection_->GetInterface(&user_access_manager_);
+  user_access_manager_->SetActiveUser(login_user_id_);
   StartWindowManager();
   StartLogin();
 }
 
 void Init::LoginAs(const mojo::String& user_id) {
+  user_access_manager_->SetActiveUser(user_id);
   connections_["mojo:mash_login"].reset();
   connections_["mojo:desktop_wm"].reset();
   mojo::Connector::ConnectParams params(
@@ -37,14 +41,16 @@ void Init::Create(mojo::Connection* connection, mojom::LoginRequest request) {
 }
 
 void Init::StartWindowManager() {
-  mojo::Connector::ConnectParams params(mojo::Identity("mojo:desktop_wm", "2"));
+  mojo::Connector::ConnectParams params(
+      mojo::Identity("mojo:desktop_wm", login_user_id_));
   StartRestartableService(
       &params,
       base::Bind(&Init::StartWindowManager, base::Unretained(this)));
 }
 
 void Init::StartLogin() {
-  mojo::Connector::ConnectParams params(mojo::Identity("mojo:mash_login", "2"));
+  mojo::Connector::ConnectParams params(
+      mojo::Identity("mojo:mash_login", login_user_id_));
   StartRestartableService(
       &params,
       base::Bind(&Init::StartLogin, base::Unretained(this)));
diff --git a/mash/init/init.h b/mash/init/init.h
index 04812c1..f0d34e1 100644
--- a/mash/init/init.h
+++ b/mash/init/init.h
@@ -10,6 +10,7 @@
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
+#include "components/mus/public/interfaces/user_access_manager.mojom.h"
 #include "mash/init/public/interfaces/login.mojom.h"
 #include "mojo/public/cpp/bindings/binding_set.h"
 #include "mojo/shell/public/cpp/connector.h"
@@ -53,6 +54,8 @@ class Init : public mojo::ShellClient,
   std::map<std::string, scoped_ptr<mojo::Connection>> connections_;
   mojo::BindingSet<mojom::Login> login_bindings_;
   scoped_ptr<mojo::Connection> mus_connection_;
+  mus::mojom::UserAccessManagerPtr user_access_manager_;
+  const std::string login_user_id_;
 
   DISALLOW_COPY_AND_ASSIGN(Init);
 };
diff --git a/mash/login/login.cc b/mash/login/login.cc
index 49bfd34..7604850 100644
--- a/mash/login/login.cc
+++ b/mash/login/login.cc
@@ -4,6 +4,7 @@
 
 #include "mash/login/login.h"
 
+#include "base/guid.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ -27,6 +28,8 @@ class LoginView : public views::WidgetDelegateView,
  public:
   explicit LoginView(Login* login)
       : login_(login),
+        user_id_1_(base::GenerateGUID()),
+        user_id_2_(base::GenerateGUID()),
         login_button_1_(
             new views::LabelButton(this, base::ASCIIToUTF16("Timothy"))),
         login_button_2_(
@@ -72,9 +75,9 @@ class LoginView : public views::WidgetDelegateView,
     // Login...
     mojo::Connector::ConnectParams params("mojo:mash_shell");
     if (sender == login_button_1_) {
-      login_->login()->LoginAs("3");
+      login_->login()->LoginAs(user_id_1_);
     } else if (sender == login_button_2_) {
-      login_->login()->LoginAs("4");
+      login_->login()->LoginAs(user_id_2_);
     } else {
       NOTREACHED();
     }
@@ -82,6 +85,8 @@ class LoginView : public views::WidgetDelegateView,
   }
 
   Login* login_;
+  const std::string user_id_1_;
+  const std::string user_id_2_;
   views::LabelButton* login_button_1_;
   views::LabelButton* login_button_2_;