Hide title in more AlertActivities in packageinstaller

Test: Manual + verify with partner
Bug: 139278141
Change-Id: I720460843680777723f628eb4b05fce906326cf8
diff --git a/packages/PackageInstaller/AndroidManifest.xml b/packages/PackageInstaller/AndroidManifest.xml
index 1c0e409..7d07fda 100644
--- a/packages/PackageInstaller/AndroidManifest.xml
+++ b/packages/PackageInstaller/AndroidManifest.xml
@@ -118,6 +118,7 @@
         </receiver>
 
         <activity android:name=".UninstallUninstalling"
+            android:theme="@style/Theme.AlertDialogActivity.NoActionBar"
             android:excludeFromRecents="true"
             android:exported="false" />
 
diff --git a/packages/PackageInstaller/res/values/themes.xml b/packages/PackageInstaller/res/values/themes.xml
index b11d28b..eecf9a1 100644
--- a/packages/PackageInstaller/res/values/themes.xml
+++ b/packages/PackageInstaller/res/values/themes.xml
@@ -17,7 +17,8 @@
 
 <resources>
 
-    <style name="Theme.AlertDialogActivity.NoAnimation">
+    <style name="Theme.AlertDialogActivity.NoAnimation"
+           parent="@style/Theme.AlertDialogActivity.NoActionBar">
         <item name="android:windowAnimationStyle">@null</item>
     </style>