EuiccGoogle: skip Resources.getText() filtering for getApplicationLabel

PackageManager.getApplicationLabel() calls Resources.getText(), which in EuiccGoogle replaces
strings that contain "Google" with an empty string. This replacement is done to remove a misleading
string about info being sent to Google.

During Google Fi activation, Google Fi app invokes EuiccGoogle. EuiccGoogle then checks for caller
app label and aborts activation if it's empty. Since the Google Fi app label contains "Google",
it was always replaced with an empty string before this change, which broke Google Fi activation.

core/java/android/app/ApplicationPackageManager.java

@@ -86,6 +86,7 @@
 import android.content.res.Configuration;
 import android.content.res.Resources;
 import android.content.res.XmlResourceParser;
+import com.android.internal.ext.EuiccGoogleHooks;
 import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.Rect;
@@ -2389,7 +2390,13 @@ public CharSequence getText(String packageName, @StringRes int resid,
         }
         try {
             Resources r = getResourcesForApplication(appInfo);
-            text = r.getText(resid);
+            if (AppGlobals.getInitialPackageId() == android.ext.PackageId.G_EUICC_LPA) {
+                try (var s = new EuiccGoogleHooks.SuppressResourceFiltering()) {
+                    text = r.getText(resid);
+                }
+            } else {
+                text = r.getText(resid);
+            }
             putCachedString(name, text);
             return text;
         } catch (NameNotFoundException e) {

core/java/android/content/res/Resources.java

@@ -71,6 +71,7 @@
 
 import com.android.internal.annotations.GuardedBy;
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.ext.EuiccGoogleHooks;
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.GrowingArrayUtils;
 import com.android.internal.util.Preconditions;
@@ -456,8 +457,12 @@ public ConfigurationBoundResourceCache<StateListAnimator> getStateListAnimatorCa
         CharSequence res = mResourcesImpl.getAssets().getResourceText(id);
         if (res != null) {
             if (android.app.AppGlobals.getInitialPackageId() == android.ext.PackageId.G_EUICC_LPA) {
-                if (res.toString().contains("Google")) {
-                    return "";
+                if (!EuiccGoogleHooks.isResourceFilteringSuppressed()) {
+                    String s = res.toString();
+                    if (s.contains("Google")) {
+                        Log.d("GEuiccLpa", "replaced getText() with empty string: " + s);
+                        return "";
+                    }
                 }
             }
             return res;

core/java/com/android/internal/ext/EuiccGoogleHooks.java

@@ -0,0 +1,33 @@
+package com.android.internal.ext;
+
+public class EuiccGoogleHooks {
+
+    private static final ThreadLocal<Integer> resourceFilteringSuppressionCounter =
+            ThreadLocal.withInitial(() -> Integer.valueOf(0));
+
+    public static boolean isResourceFilteringSuppressed() {
+        return resourceFilteringSuppressionCounter.get() > 0;
+    }
+
+    public static class SuppressResourceFiltering implements AutoCloseable {
+
+        public SuppressResourceFiltering() {
+            var tl = resourceFilteringSuppressionCounter;
+            int newValue = tl.get() + 1;
+            if (newValue <= 0) {
+                throw new IllegalStateException();
+            }
+            tl.set(newValue);
+        }
+
+        @Override
+        public void close() {
+            var tl = resourceFilteringSuppressionCounter;
+            int newValue = tl.get() - 1;
+            if (newValue < 0) {
+                throw new IllegalStateException();
+            }
+            tl.set(newValue);
+        }
+    }
+}