Merge 2987: Fix hyphenated words not to overflow on Android

third_party/WebKit/Source/platform/text/hyphenation/HyphenationMinikin.h

+// Copyright 2017 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "platform/text/Hyphenation.h"
+
+#include "base/files/memory_mapped_file.h"
+#include "platform/PlatformExport.h"
+
+namespace base {
+class File;
+}  // namespace base
+
+namespace android {
+class Hyphenator;
+}  // namespace andorid
+
+namespace blink {
+
+class PLATFORM_EXPORT HyphenationMinikin : public Hyphenation {
+ public:
+  bool openDictionary(const AtomicString& locale);
+
+  size_t lastHyphenLocation(const StringView& text,
+                            size_t beforeIndex) const override;
+  Vector<size_t, 8> hyphenLocations(const StringView&) const override;
+
+  static PassRefPtr<HyphenationMinikin> fromFileForTesting(base::File);
+
+ private:
+  bool openDictionary(base::File);
+
+  std::vector<uint8_t> hyphenate(const StringView&) const;
+
+  base::MemoryMappedFile m_file;
+  std::unique_ptr<android::Hyphenator> m_hyphenator;
+};
+
+}  // namespace blink