Minor refactor to mark fields with respective annotations.

Bug: 289003212
Test: presubmit
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f4c751e925145a9384878c3e5f9da0fe5c029f43)
Merged-In: Ia68d52f1c8ce95ff8d838ce4fd1b3b30675b91bf
Change-Id: Ia68d52f1c8ce95ff8d838ce4fd1b3b30675b91bf

services/core/java/com/android/server/pm/PackageSetting.java

@@ -337,7 +337,7 @@ public class PackageSetting extends SettingBase implements PackageStateInternal
             final long previousFirstInstallTime =
                     replacedPkgSetting.getUserStateOrDefault(userId).getFirstInstallTimeMillis();
             if (previousFirstInstallTime != 0) {
-                modifyUserState(userId).setFirstInstallTime(previousFirstInstallTime);
+                modifyUserState(userId).setFirstInstallTimeMillis(previousFirstInstallTime);
             }
         }
         onChanged();
@@ -352,10 +352,10 @@ public class PackageSetting extends SettingBase implements PackageStateInternal
         if (userId == UserHandle.USER_ALL) {
             int userStateCount = mUserStates.size();
             for (int i = 0; i < userStateCount; i++) {
-                mUserStates.valueAt(i).setFirstInstallTime(firstInstallTime);
+                mUserStates.valueAt(i).setFirstInstallTimeMillis(firstInstallTime);
             }
         } else {
-            modifyUserState(userId).setFirstInstallTime(firstInstallTime);
+            modifyUserState(userId).setFirstInstallTimeMillis(firstInstallTime);
         }
         onChanged();
         return this;
@@ -894,7 +894,7 @@ public class PackageSetting extends SettingBase implements PackageStateInternal
                 .setVirtualPreload(virtualPreload)
                 .setHarmfulAppWarning(harmfulAppWarning)
                 .setSplashScreenTheme(splashScreenTheme)
-                .setFirstInstallTime(firstInstallTime);
+                .setFirstInstallTimeMillis(firstInstallTime);
         onChanged();
     }