Clean up before making all setting page render edge-to-edge

These classes are casting view to LinearLayout unnecessarily. Later we
might change the root view away from LinearLayout. The cast will cause
crash.

Bug: 132182711
Test: go through SUW.
Change-Id: Iea31882f8edea0c87ef8e95b4da9b6bffa8ea7d0

src/com/android/settings/EncryptionInterstitial.java

@@ -84,8 +84,7 @@ public class EncryptionInterstitial extends SettingsActivity {
     @Override
     protected void onCreate(Bundle savedInstance) {
         super.onCreate(savedInstance);
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+        findViewById(R.id.content_parent).setFitsSystemWindows(false);
-        layout.setFitsSystemWindows(false);
     }
 
     public static class EncryptionInterstitialFragment extends InstrumentedFragment {

src/com/android/settings/SetupEncryptionInterstitial.java

@@ -18,8 +18,6 @@ package com.android.settings;
 
 import android.content.Context;
 import android.content.Intent;
-import android.os.Bundle;
-import android.widget.LinearLayout;
 
 /**
  * Setup Wizard's version of EncryptionInterstitial screen. It inherits the logic and basic
@@ -53,13 +51,6 @@ public class SetupEncryptionInterstitial extends EncryptionInterstitial {
         return SetupEncryptionInterstitialFragment.class.getName().equals(fragmentName);
     }
 
-    @Override
-    protected void onCreate(Bundle savedInstance) {
-        super.onCreate(savedInstance);
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
-        layout.setFitsSystemWindows(false);
-    }
-
     public static class SetupEncryptionInterstitialFragment extends EncryptionInterstitialFragment {
     }
 }

src/com/android/settings/notification/RedactionInterstitial.java

@@ -33,7 +33,6 @@ import android.provider.Settings;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
-import android.widget.LinearLayout;
 import android.widget.RadioButton;
 import android.widget.RadioGroup;
 import android.widget.TextView;
@@ -74,12 +73,12 @@ public class RedactionInterstitial extends SettingsActivity {
     @Override
     protected void onCreate(Bundle savedInstance) {
         super.onCreate(savedInstance);
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+        findViewById(R.id.content_parent).setFitsSystemWindows(false);
-        layout.setFitsSystemWindows(false);
     }
 
     /**
      * Create an intent for launching RedactionInterstitial.
+     *
      * @return An intent to launch the activity is if is available, @null if the activity is not
      * available to be launched.
      */
@@ -87,8 +86,8 @@ public class RedactionInterstitial extends SettingsActivity {
         return new Intent(ctx, RedactionInterstitial.class)
                 .putExtra(EXTRA_SHOW_FRAGMENT_TITLE_RESID,
                         UserManager.get(ctx).isManagedProfile(userId)
-                            ? R.string.lock_screen_notifications_interstitial_title_profile
+                                ? R.string.lock_screen_notifications_interstitial_title_profile
-                            : R.string.lock_screen_notifications_interstitial_title)
+                                : R.string.lock_screen_notifications_interstitial_title)
                 .putExtra(Intent.EXTRA_USER_ID, userId);
     }
 
@@ -160,7 +159,7 @@ public class RedactionInterstitial extends SettingsActivity {
 
             checkNotificationFeaturesAndSetDisabled(mShowAllButton,
                     KEYGUARD_DISABLE_SECURE_NOTIFICATIONS |
-                    KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
+                            KEYGUARD_DISABLE_UNREDACTED_NOTIFICATIONS);
             checkNotificationFeaturesAndSetDisabled(mRedactSensitiveButton,
                     KEYGUARD_DISABLE_SECURE_NOTIFICATIONS);
             loadFromSettings();

src/com/android/settings/password/ChooseLockPassword.java

@@ -175,8 +175,7 @@ public class ChooseLockPassword extends SettingsActivity {
         }
 
         setTitle(msg);
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+        findViewById(R.id.content_parent).setFitsSystemWindows(false);
-        layout.setFitsSystemWindows(false);
     }
 
     public static class ChooseLockPasswordFragment extends InstrumentedFragment

src/com/android/settings/password/ChooseLockPattern.java

@@ -163,8 +163,7 @@ public class ChooseLockPattern extends SettingsActivity {
         }
 
         setTitle(msg);
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+        findViewById(R.id.content_parent).setFitsSystemWindows(false);
-        layout.setFitsSystemWindows(false);
     }
 
     @Override

src/com/android/settings/password/ConfirmDeviceCredentialBaseActivity.java

@@ -96,8 +96,7 @@ public abstract class ConfirmDeviceCredentialBaseActivity extends SettingsActivi
         if (mConfirmCredentialTheme == ConfirmCredentialTheme.NORMAL) {
             // Prevent the content parent from consuming the window insets because GlifLayout uses
             // it to show the status bar background.
-            LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+            findViewById(R.id.content_parent).setFitsSystemWindows(false);
-            layout.setFitsSystemWindows(false);
         }
         getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
         mIsKeyguardLocked = savedState == null

src/com/android/settings/password/SetupChooseLockGeneric.java

@@ -93,8 +93,7 @@ public class SetupChooseLockGeneric extends ChooseLockGeneric {
             }
         }
 
-        LinearLayout layout = (LinearLayout) findViewById(R.id.content_parent);
+        findViewById(R.id.content_parent).setFitsSystemWindows(false);
-        layout.setFitsSystemWindows(false);
     }
 
     public static class SetupChooseLockGenericFragment extends ChooseLockGenericFragment {