checklicenses: Recognize the Independent JPEG Group's license.

BUG=98313,374943
NOTRY=true

Review URL: https://codereview.chromium.org/294763003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@271712 0039d316-1c4b-4281-b951-d872f2087c98

third_party/devscripts/licensecheck.pl

@@ -497,6 +497,10 @@ sub parselicense($) {
 	$license = "MIT/X11 (BSD like) $license";
     }
 
+    if ($licensetext  =~ /This file is part of the Independent JPEG Group(')?s software.*For conditions of distribution and use, see the accompanying README file/i) {
+	$license = "Independent JPEG Group License $license";
+    }
+
     if ($licensetext  =~ /the University of Illinois Open Source License/){
 	$license = "University of Illinois/NCSA Open Source License (BSD like) $license";
     }

tools/checklicenses/checklicenses.py

@@ -58,6 +58,7 @@ WHITELISTED_LICENSES = [
     'GPL (v2 or later) with libtool exception',
     'GPL (v3 or later) with Bison parser exception',
     'GPL with Bison parser exception',
+    'Independent JPEG Group License',
     'ISC',
     'LGPL (unversioned/unknown version)',
     'LGPL (v2)',
@@ -206,9 +207,6 @@ PATH_SPECIFIC_WHITELISTED_LICENSES = {
     'third_party/libjingle/source/talk': [  # http://crbug.com/98310
         'UNKNOWN',
     ],
-    'third_party/libjpeg': [  # http://crbug.com/98313
-        'UNKNOWN',
-    ],
     'third_party/libjpeg_turbo': [  # http://crbug.com/98314
         'UNKNOWN',
     ],