GitLab

Changed all @code to <code> and @endcode to </code> as per dmichael. Adding Polina to the review to look at url_loader.h and give approval of text that points to example.
Review URL: http://codereview.chromium.org/7715005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@98856 0039d316-1c4b-4281-b951-d872f2087c98