Avoid calling AlertDialog.Builder.setOnDismissListener.

That call is only available since API level 17.

BUG=380210
NOTRY=True

Review URL: https://codereview.chromium.org/334773002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@276793 0039d316-1c4b-4281-b951-d872f2087c98

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

@@ -245,7 +245,8 @@ public class SigninManager {
                         mPolicyConfirmationDialog = null;
                     }
                 });
-        builder.setOnDismissListener(
+        mPolicyConfirmationDialog = builder.create();
+        mPolicyConfirmationDialog.setOnDismissListener(
                 new DialogInterface.OnDismissListener() {
                     @Override
                     public void onDismiss(DialogInterface dialog) {
@@ -256,7 +257,6 @@ public class SigninManager {
                         }
                     }
                 });
-        mPolicyConfirmationDialog = builder.create();
         mPolicyConfirmationDialog.show();
     }