Add woff2 to src/third_party

third_party/woff2/src/transform.h

+// Copyright 2013 Google Inc. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+// Library for preprocessing fonts as part of the WOFF 2.0 conversion.
+
+#ifndef WOFF2_TRANSFORM_H_
+#define WOFF2_TRANSFORM_H_
+
+#include "./font.h"
+
+namespace woff2 {
+
+// Adds the transformed versions of the glyf and loca tables to the font. The
+// transformed loca table has zero length. The tag of the transformed tables is
+// derived from the original tag by flipping the MSBs of every byte.
+bool TransformGlyfAndLocaTables(Font* font);
+
+} // namespace woff2
+
+#endif  // WOFF2_TRANSFORM_H_