Sizes going across an IPC should be uint32.

BUG=164946

Review URL: https://chromiumcodereview.appspot.com/11472038

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171944 0039d316-1c4b-4281-b951-d872f2087c98
void FastSetActiveURL(const GURL& url, size_t url_hash) {
  if (url.is_empty())
    return;
  static size_t g_last_url_hash = 0;
  if (url_hash != g_last_url_hash) {
    g_last_url_hash = url_hash;
    GetContentClient()->SetActiveURL(url);
  }
}

void FastSetActiveURL(const GURL& url, size_t url_hash) {
  if (url.is_empty())
    return;
  static size_t g_last_url_hash = 0;
  if (url_hash != g_last_url_hash) {
    g_last_url_hash = url_hash;
    GetContentClient()->SetActiveURL(url);
  }
}
