🎾 Migrate more shared preferences to ContextUtils.

blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java

Index: blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java
diff --git a/blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java b/blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java
index a21c9c0d4e3de1ba1828f0eb91d35a55d0692fe8..a20d79897709d7055d394fd1f15b15ef462fd57b 100644
--- a/blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java
+++ b/blimp/client/app/android/java/src/org/chromium/blimp/auth/TokenSourceImpl.java
@@ -10,7 +10,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.content.SharedPreferences;
 import android.os.AsyncTask;
-import android.preference.PreferenceManager;
 
 import com.google.android.gms.auth.GoogleAuthException;
 import com.google.android.gms.auth.GoogleAuthUtil;
@@ -18,6 +17,7 @@ import com.google.android.gms.auth.GooglePlayServicesAvailabilityException;
 import com.google.android.gms.auth.UserRecoverableNotifiedException;
 import com.google.android.gms.common.ConnectionResult;
 
+import org.chromium.base.ContextUtils;
 import org.chromium.base.Log;
 import org.chromium.base.ThreadUtils;
 import org.chromium.blimp.R;
@@ -82,7 +82,7 @@ public class TokenSourceImpl implements TokenSource {
         if (mCallback == null) return;
 
         // Find the current account tracked by settings.
-        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mAppContext);
+        SharedPreferences preferences = ContextUtils.getAppSharedPreferences();
         String accountName = preferences.getString(ACCOUNT_NAME_PREF, null);
 
         if (accountName == null || !doesAccountExist(accountName)) {
@@ -129,7 +129,7 @@ public class TokenSourceImpl implements TokenSource {
         ThreadUtils.assertOnUiThread();
 
         String accountName = data.getStringExtra(AccountManager.KEY_ACCOUNT_NAME);
-        SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(mAppContext);
+        SharedPreferences preferences = ContextUtils.getAppSharedPreferences();
         preferences.edit().putString(ACCOUNT_NAME_PREF, accountName).apply();
     }