PackageSetting now owns its PackageUserState

Bug: 194349419

The PackageSetting snapshot now clones the PackageUserState rather
than simply copying the reference.

Test: atest
 * CtsContentTestCases:IntentFilterTest
 * CtsDynamicMimeHostTestCases
 * CtsRoleTestCases
 * FrameworksServicesTests:UserSystemPackageInstallerTest
 * FrameworksServicesTests:PackageManagerSettingsTests
 * FrameworksServicesTests:PackageManagerServiceTest
 * FrameworksServicesTests:AppsFilterTest
 * FrameworksServicesTests:PackageInstallerSessionTest
 * FrameworksServicesTests:ScanTests
 * UserLifecycleTests#startUser
 * UserLifecycleTests#stopUser
 * UserLifecycleTests#switchUser
 * FrameworksServicesTests:WatcherTest
 * android.appsecurity.cts.EphemeralTest
 * android.appsecurity.cts.InstantAppUserTest
Change-Id: I27d26e0a34e445bf2e67139199d8ec7fb1b73583
diff --git a/services/core/java/com/android/server/pm/PackageSettingBase.java b/services/core/java/com/android/server/pm/PackageSettingBase.java
index bf82bd8..88dd033 100644
--- a/services/core/java/com/android/server/pm/PackageSettingBase.java
+++ b/services/core/java/com/android/server/pm/PackageSettingBase.java
@@ -176,6 +176,10 @@
         name = orig.name;
         realName = orig.realName;
         doCopy(orig);
+        // Clone the user states.
+        for (int i = 0; i < mUserState.size(); i++) {
+            mUserState.put(mUserState.keyAt(i), new PackageUserState(mUserState.valueAt(i)));
+        }
     }
 
     public void setInstallerPackageName(String packageName) {
@@ -314,6 +318,7 @@
 
     void setInstalled(boolean inst, int userId) {
         modifyUserState(userId).installed = inst;
+        onChanged();
     }
 
     boolean getInstalled(int userId) {
@@ -326,6 +331,7 @@
 
     void setInstallReason(int installReason, int userId) {
         modifyUserState(userId).installReason = installReason;
+        onChanged();
     }
 
     int getUninstallReason(int userId) {
@@ -334,10 +340,13 @@
 
     void setUninstallReason(@UninstallReason int uninstallReason, int userId) {
         modifyUserState(userId).uninstallReason = uninstallReason;
+        onChanged();
     }
 
     boolean setOverlayPaths(OverlayPaths overlayPaths, int userId) {
-        return modifyUserState(userId).setOverlayPaths(overlayPaths);
+        boolean returnValue = modifyUserState(userId).setOverlayPaths(overlayPaths);
+        onChanged();
+        return returnValue;
     }
 
     OverlayPaths getOverlayPaths(int userId) {
@@ -346,7 +355,10 @@
 
     boolean setOverlayPathsForLibrary(String libName, OverlayPaths overlayPaths,
             int userId) {
-        return modifyUserState(userId).setSharedLibraryOverlayPaths(libName, overlayPaths);
+        boolean returnValue =  modifyUserState(userId)
+                .setSharedLibraryOverlayPaths(libName, overlayPaths);
+        onChanged();
+        return returnValue;
     }
 
     Map<String, OverlayPaths> getOverlayPathsForLibrary(int userId) {
@@ -395,6 +407,7 @@
 
     void setCeDataInode(long ceDataInode, int userId) {
         modifyUserState(userId).ceDataInode = ceDataInode;
+        onChanged();
     }
 
     boolean getStopped(int userId) {
@@ -403,6 +416,7 @@
 
     void setStopped(boolean stop, int userId) {
         modifyUserState(userId).stopped = stop;
+        onChanged();
     }
 
     boolean getNotLaunched(int userId) {
@@ -411,6 +425,7 @@
 
     void setNotLaunched(boolean stop, int userId) {
         modifyUserState(userId).notLaunched = stop;
+        onChanged();
     }
 
     boolean getHidden(int userId) {
@@ -419,6 +434,7 @@
 
     void setHidden(boolean hidden, int userId) {
         modifyUserState(userId).hidden = hidden;
+        onChanged();
     }
 
     int getDistractionFlags(int userId) {
@@ -427,6 +443,7 @@
 
     void setDistractionFlags(int distractionFlags, int userId) {
         modifyUserState(userId).distractionFlags = distractionFlags;
+        onChanged();
     }
 
     boolean getSuspended(int userId) {
@@ -487,6 +504,7 @@
 
     void setInstantApp(boolean instantApp, int userId) {
         modifyUserState(userId).instantApp = instantApp;
+        onChanged();
     }
 
     boolean getVirtulalPreload(int userId) {
@@ -495,6 +513,7 @@
 
     void setVirtualPreload(boolean virtualPreload, int userId) {
         modifyUserState(userId).virtualPreload = virtualPreload;
+        onChanged();
     }
 
     void setUserState(int userId, long ceDataInode, int enabled, boolean installed, boolean stopped,
@@ -547,20 +566,24 @@
 
     void setEnabledComponents(ArraySet<String> components, int userId) {
         modifyUserState(userId).enabledComponents = components;
+        onChanged();
     }
 
     void setDisabledComponents(ArraySet<String> components, int userId) {
         modifyUserState(userId).disabledComponents = components;
+        onChanged();
     }
 
     void setEnabledComponentsCopy(ArraySet<String> components, int userId) {
         modifyUserState(userId).enabledComponents = components != null
                 ? new ArraySet<String>(components) : null;
+        onChanged();
     }
 
     void setDisabledComponentsCopy(ArraySet<String> components, int userId) {
         modifyUserState(userId).disabledComponents = components != null
                 ? new ArraySet<String>(components) : null;
+        onChanged();
     }
 
     PackageUserState modifyUserStateComponents(int userId, boolean disabled, boolean enabled) {
@@ -582,10 +605,12 @@
 
     void addDisabledComponent(String componentClassName, int userId) {
         modifyUserStateComponents(userId, true, false).disabledComponents.add(componentClassName);
+        onChanged();
     }
 
     void addEnabledComponent(String componentClassName, int userId) {
         modifyUserStateComponents(userId, false, true).enabledComponents.add(componentClassName);
+        onChanged();
     }
 
     boolean enableComponentLPw(String componentClassName, int userId) {
@@ -593,6 +618,9 @@
         boolean changed = state.disabledComponents != null
                 ? state.disabledComponents.remove(componentClassName) : false;
         changed |= state.enabledComponents.add(componentClassName);
+        if (changed) {
+            onChanged();
+        }
         return changed;
     }
 
@@ -601,6 +629,9 @@
         boolean changed = state.enabledComponents != null
                 ? state.enabledComponents.remove(componentClassName) : false;
         changed |= state.disabledComponents.add(componentClassName);
+        if (changed) {
+            onChanged();
+        }
         return changed;
     }
 
@@ -610,6 +641,9 @@
                 ? state.disabledComponents.remove(componentClassName) : false;
         changed |= state.enabledComponents != null
                 ? state.enabledComponents.remove(componentClassName) : false;
+        if (changed) {
+            onChanged();
+        }
         return changed;
     }
 
@@ -701,6 +735,7 @@
     PackageSettingBase setPath(@NonNull File path) {
         this.mPath = path;
         this.mPathString = path.toString();
+        onChanged();
         return this;
     }
 
@@ -722,7 +757,9 @@
     @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
     public boolean overrideNonLocalizedLabelAndIcon(@NonNull ComponentName component,
             @Nullable String label, @Nullable Integer icon, @UserIdInt int userId) {
-        return modifyUserState(userId).overrideLabelAndIcon(component, label, icon);
+        boolean returnValue = modifyUserState(userId).overrideLabelAndIcon(component, label, icon);
+        onChanged();
+        return returnValue;
     }
 
     /**
@@ -732,6 +769,7 @@
      */
     public void resetOverrideComponentLabelIcon(@UserIdInt int userId) {
         modifyUserState(userId).resetOverrideComponentLabelIcon();
+        onChanged();
     }
 
     /**
@@ -741,6 +779,7 @@
      */
     public void setSplashScreenTheme(@UserIdInt int userId, @Nullable String themeName) {
         modifyUserState(userId).splashScreenTheme = themeName;
+        onChanged();
     }
 
     /**
@@ -776,6 +815,7 @@
      */
     public void setStatesOnCommit() {
         incrementalStates.onCommit(IncrementalManager.isIncrementalPath(getPathString()));
+        onChanged();
     }
 
     /**
@@ -783,6 +823,7 @@
      */
     public void setIncrementalStatesCallback(IncrementalStates.Callback callback) {
         incrementalStates.setCallback(callback);
+        onChanged();
     }
 
     /**
@@ -791,6 +832,7 @@
      */
     public void setLoadingProgress(float progress) {
         incrementalStates.setProgress(progress);
+        onChanged();
     }
 
     public long getFirstInstallTime() {