Fix license metadata for ppapi

Currently, the license file mentions only the BSD license, but some of the code
in lib/ seems to use an MIT license.

Also include this directory in the list of extra directories scanned by the
license tool.

BUG=138921


Review URL: https://chromiumcodereview.appspot.com/10828117

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@149700 0039d316-1c4b-4281-b951-d872f2087c98

ppapi/LICENSE

-// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
@@ -25,3 +25,27 @@
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+/*
+** Copyright (c) 2007-2010 The Khronos Group Inc.
+**
+** Permission is hereby granted, free of charge, to any person obtaining a
+** copy of this software and/or associated documentation files (the
+** "Materials"), to deal in the Materials without restriction, including
+** without limitation the rights to use, copy, modify, merge, publish,
+** distribute, sublicense, and/or sell copies of the Materials, and to
+** permit persons to whom the Materials are furnished to do so, subject to
+** the following conditions:
+**
+** The above copyright notice and this permission notice shall be included
+** in all copies or substantial portions of the Materials.
+**
+** THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
+*/

ppapi/README.chromium

+Name: PPAPI
+URL: http://code.google.com/p/ppapi
+License: BSD and MIT
+Security Critical: yes

tools/licenses.py

@@ -95,6 +95,7 @@ PRUNE_DIRS = ('.svn', '.git',             # VCS metadata
 ADDITIONAL_PATHS = (
     os.path.join('googleurl'),
     os.path.join('native_client_sdk'),
+    os.path.join('ppapi'),
     # The directory with the word list for Chinese and Japanese segmentation
     # with different license terms than ICU.
     os.path.join('third_party','icu','source','data','brkitr'),