page override

override_page.php

/**
 * Implements hook_theme().
 */
function content_vote_theme($existing, $type, $theme, $path) {
  return array(

    // VOTE BUTTONS
    'content_vote' => array(
      'variables' => array(
        'gameid' => NULL,
        'contentid' => NULL,
      ),
      'file' => 'content_vote.theme.inc',
    ),
    'page__vote' => array(
      'template' => 'page--vote',
      'path' => drupal_get_path('module', 'content_vote'),
    ),

  );
}

/**
 * Implements hook_preprocess_page().
 */
function content_vote_preprocess_page(&$variables, $hook) {

  if (arg(0) === 'content' && arg(1) === 'vote') {
    $variables['theme_hook_suggestions'][] = 'page__vote';
  }

}