Use commitAllowingStateLoss() for showing sync confirmation dialogs

chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java

Index: chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java b/chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java
index 5d558daa2cbdf81e7aa947ac85a182d6a6cf5c28..3f93053db36e837093a887908dfd23bb5ad48e15 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/signin/ConfirmImportSyncDataDialog.java
@@ -7,6 +7,7 @@ package org.chromium.chrome.browser.signin;
 import android.app.Dialog;
 import android.app.DialogFragment;
 import android.app.FragmentManager;
+import android.app.FragmentTransaction;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.v7.app.AlertDialog;
@@ -101,7 +102,9 @@ public class ConfirmImportSyncDataDialog extends DialogFragment
                 newInstance(oldAccountName, newAccountName, importSyncType);
 
         confirmSync.setListener(callback);
-        confirmSync.show(fragmentManager, CONFIRM_IMPORT_SYNC_DATA_DIALOG_TAG);
+        FragmentTransaction transaction = fragmentManager.beginTransaction();
+        transaction.add(confirmSync, CONFIRM_IMPORT_SYNC_DATA_DIALOG_TAG);
+        transaction.commitAllowingStateLoss();
     }
 
     @Override