[Android] Add logging for AppLocaleUtils

This CL adds some simple logging in AppLocaleUtils to observe what
language splits are available to the application and what the override
locale should be.

Bug: 1128698
Change-Id: I925cd84d384602e2f0beedd63ecd551f87c24b09
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2440976Reviewed-by: Scott Little <sclittle@chromium.org>
Commit-Queue: Trevor  Perrier <perrier@chromium.org>
Cr-Commit-Position: refs/heads/master@{#812522}

chrome/android/java/src/org/chromium/chrome/browser/language/AppLocaleUtils.java

@@ -15,6 +15,7 @@ import com.google.android.play.core.splitinstall.SplitInstallRequest;
 
 import org.chromium.base.BundleUtils;
 import org.chromium.base.ContextUtils;
+import org.chromium.base.Log;
 import org.chromium.chrome.browser.preferences.ChromePreferenceKeys;
 import org.chromium.chrome.browser.preferences.SharedPreferencesManager;
 
@@ -27,6 +28,8 @@ import java.util.Locale;
 public class AppLocaleUtils {
     private AppLocaleUtils(){};
 
+    private static final String TAG = "AppLocale";
+
     /**
      * Return true if languageName is the same as the current application override
      * language stored preference.
@@ -75,9 +78,13 @@ public class AppLocaleUtils {
      * @param context Activity context to enable downloaded language splits on.
      */
     public static void maybeInstallActivitySplitCompat(Context context) {
+        Log.i(TAG, "maybeInstallActivitySplit isOverridden: %s  isBundle: %s",
+                GlobalAppLocaleController.getInstance().isOverridden(), BundleUtils.isBundle());
         if (GlobalAppLocaleController.getInstance().isOverridden() && BundleUtils.isBundle()) {
             SplitCompat.installActivity(context);
+            Log.i(TAG, "Override Locale: %s", getAppLanguagePref());
         }
+        logInstalledLanguages();
     }
 
     /**
@@ -95,5 +102,21 @@ public class AppLocaleUtils {
                             .build();
             splitInstallManager.startInstall(installRequest);
         }
+        logInstalledLanguages();
+    }
+
+    /**
+     * Log list of installed languages
+     */
+    private static void logInstalledLanguages() {
+        if (BundleUtils.isBundle()) {
+            SplitInstallManager splitInstallManager =
+                    SplitInstallManagerFactory.create(ContextUtils.getApplicationContext());
+
+            Log.i(TAG, "Installed Languages: %s",
+                    TextUtils.join(", ", splitInstallManager.getInstalledLanguages()));
+        } else {
+            Log.i(TAG, "Installed Languages: None - not a bundle");
+        }
     }
 }