Add copyright headers to remaining gyp files.

gyp/pathops_unittest.gypi

+# Copyright 2015 Google Inc.
+#
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
 # Common gypi for pathops unit tests.
 {
   'include_dirs': [
     '../src/core',
     '../src/effects',
     '../src/lazy',
     '../src/pathops',
     '../src/pipe/utils',
     '../src/utils',
   ],
@@ skipping 46 matching lines @@
     '../tests/PathOpsTestCommon.cpp',
     '../tests/PathOpsThreadedCommon.cpp',
     '../tests/PathOpsTightBoundsTest.cpp',
     '../tests/PathOpsCubicIntersectionTestData.h',
     '../tests/PathOpsExtendedTest.h',
     '../tests/PathOpsQuadIntersectionTestData.h',
     '../tests/PathOpsTestCommon.h',
     '../tests/PathOpsThreadedCommon.h',
   ],
 }