Remove keying off WEBPERMISSIONCLIENT_USES_FRAME_FOR_ALL_METHODS in chrome code since Blink has rolled.

BUG=304341
R=nasko@chromium.org

Review URL: https://codereview.chromium.org/100623013

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241007 0039d316-1c4b-4281-b951-d872f2087c98
Remove some static methods on Browser that were used to service WebContentsDelegate implementations in Browser and ExternalTabContentsWin. Instead these can be methods on Browser.

BUG=316496
R=grt@chromium.org

Review URL: https://codereview.chromium.org/108023003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@241008 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 241008