Remove WebView fallback package handling.

There is no longer a special "fallback package" state for WebView that
means it should not be able to have its enabled/disabled state
controlled by the user. Remove the code used to implement this in
Settings.

Bug: 129470358
Test: verify that WebView's enable/disable button is not greyed out
Change-Id: Ifc0921511a71282a77f239e5ff5955e60fab6e2c

src/com/android/settings/applications/appinfo/AppButtonsPreferenceController.java

@@ -33,13 +33,10 @@ import android.content.res.Resources;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
-import android.os.RemoteException;
-import android.os.ServiceManager;
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.util.Log;
 import android.view.View;
-import android.webkit.IWebViewUpdateService;
 
 import androidx.annotation.VisibleForTesting;
 import androidx.fragment.app.Fragment;
@@ -438,10 +435,6 @@ public class AppButtonsPreferenceController extends BasePreferenceController imp
             enabled = false;
         }
 
-        if (isFallbackPackage(mAppEntry.info.packageName)) {
-            enabled = false;
-        }
-
         mButtonsPref.setButton2Enabled(enabled);
     }
 
@@ -466,22 +459,6 @@ public class AppButtonsPreferenceController extends BasePreferenceController imp
         }
     }
 
-    @VisibleForTesting
-    boolean isFallbackPackage(String packageName) {
-        try {
-            IWebViewUpdateService webviewUpdateService =
-                    IWebViewUpdateService.Stub.asInterface(
-                            ServiceManager.getService("webviewupdate"));
-            if (webviewUpdateService.isFallbackPackage(packageName)) {
-                return true;
-            }
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
-
-        return false;
-    }
-
     @VisibleForTesting
     void updateForceStopButton() {
         if (mDpm.packageHasActiveAdmins(mPackageInfo.packageName)) {

src/com/android/settings/applications/manageapplications/ResetAppsHelper.java

@@ -32,7 +32,6 @@ import android.os.Bundle;
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.os.UserHandle;
-import android.webkit.IWebViewUpdateService;
 
 import androidx.appcompat.app.AlertDialog;
 
@@ -48,7 +47,6 @@ public class ResetAppsHelper implements DialogInterface.OnClickListener,
     private final PackageManager mPm;
     private final IPackageManager mIPm;
     private final INotificationManager mNm;
-    private final IWebViewUpdateService mWvus;
     private final NetworkPolicyManager mNpm;
     private final AppOpsManager mAom;
     private final Context mContext;
@@ -61,7 +59,6 @@ public class ResetAppsHelper implements DialogInterface.OnClickListener,
         mIPm = IPackageManager.Stub.asInterface(ServiceManager.getService("package"));
         mNm = INotificationManager.Stub.asInterface(
                 ServiceManager.getService(Context.NOTIFICATION_SERVICE));
-        mWvus = IWebViewUpdateService.Stub.asInterface(ServiceManager.getService("webviewupdate"));
         mNpm = NetworkPolicyManager.from(context);
         mAom = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
     }
@@ -122,8 +119,7 @@ public class ResetAppsHelper implements DialogInterface.OnClickListener,
                     }
                     if (!app.enabled) {
                         if (mPm.getApplicationEnabledSetting(app.packageName)
-                                == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER
+                                == PackageManager.COMPONENT_ENABLED_STATE_DISABLED_USER) {
-                                && !isNonEnableableFallback(app.packageName)) {
                             mPm.setApplicationEnabledSetting(app.packageName,
                                     PackageManager.COMPONENT_ENABLED_STATE_DEFAULT,
                                     PackageManager.DONT_KILL_APP);
@@ -147,12 +143,4 @@ public class ResetAppsHelper implements DialogInterface.OnClickListener,
             }
         });
     }
-
-    private boolean isNonEnableableFallback(String packageName) {
-        try {
-            return mWvus.isFallbackPackage(packageName);
-        } catch (RemoteException e) {
-            throw new RuntimeException(e);
-        }
-    }
 }

tests/robotests/src/com/android/settings/applications/appinfo/AppButtonsPreferenceControllerTest.java

@@ -119,7 +119,6 @@ public class AppButtonsPreferenceControllerTest {
 
         mController = spy(new AppButtonsPreferenceController(mSettingsActivity, mFragment,
                 mLifecycle, PACKAGE_NAME, mState, REQUEST_UNINSTALL, REQUEST_REMOVE_DEVICE_ADMIN));
-        doReturn(false).when(mController).isFallbackPackage(anyString());
 
         mAppEntry.info = mAppInfo;
         mAppInfo.packageName = PACKAGE_NAME;