Implement uninstall apps in CarSettings.

This follows as close as possible to the constraints implemented in Phone Settings. We don't yet have a mechanism for OEMs to define "keep enabled" packages, but it can be included in a later change. Phone Settings redirects to Device Admin pages which are not implemented in CarSettings for certain uninstall conditions. We disable the button for now pending adding those pages / direction from UX.

Bug: 79492615

Test: build and deploy, install/uninstall/enable/disable/force stop, RunCarSettingsRoboTests
Change-Id: I3a3f0a52eeb34f0b8708210a25b47f3ea75935e1
diff --git a/tests/robotests/src/com/android/car/settings/testutils/ShadowDevicePolicyManager.java b/tests/robotests/src/com/android/car/settings/testutils/ShadowDevicePolicyManager.java
index 85248af..5a6e713 100644
--- a/tests/robotests/src/com/android/car/settings/testutils/ShadowDevicePolicyManager.java
+++ b/tests/robotests/src/com/android/car/settings/testutils/ShadowDevicePolicyManager.java
@@ -18,18 +18,28 @@
 
 import android.annotation.Nullable;
 import android.app.admin.DevicePolicyManager;
+import android.util.ArraySet;
 
 import org.robolectric.annotation.Implementation;
 import org.robolectric.annotation.Implements;
 import org.robolectric.annotation.Resetter;
 
 import java.util.List;
+import java.util.Set;
 
 @Implements(value = DevicePolicyManager.class)
 public class ShadowDevicePolicyManager extends org.robolectric.shadows.ShadowDevicePolicyManager {
     @Nullable
     private static List<String> sPermittedInputMethods;
 
+    private Set<String> mActiveAdminsPackages = new ArraySet<>();
+    private boolean mIsInstallInQueue;
+
+    @Resetter
+    public static void reset() {
+        sPermittedInputMethods = null;
+    }
+
     @Implementation
     @Nullable
     protected List<String> getPermittedInputMethodsForCurrentUser() {
@@ -40,8 +50,25 @@
         sPermittedInputMethods = inputMethods;
     }
 
-    @Resetter
-    public static void reset() {
-        sPermittedInputMethods = null;
+    @Implementation
+    protected boolean packageHasActiveAdmins(String packageName) {
+        return mActiveAdminsPackages.contains(packageName);
+    }
+
+    public void setPackageHasActiveAdmins(String packageName, boolean hasActiveAdmins) {
+        if (hasActiveAdmins) {
+            mActiveAdminsPackages.add(packageName);
+        } else {
+            mActiveAdminsPackages.remove(packageName);
+        }
+    }
+
+    @Implementation
+    protected boolean isUninstallInQueue(String packageName) {
+        return mIsInstallInQueue;
+    }
+
+    public void setIsUninstallInQueue(boolean isUninstallInQueue) {
+        mIsInstallInQueue = isUninstallInQueue;
     }
 }