Add Hyphenation class

third_party/WebKit/Source/platform/text/Hyphenation.cpp

Index: third_party/WebKit/Source/platform/text/Hyphenation.cpp
diff --git a/third_party/WebKit/Source/platform/text/Hyphenation.cpp b/third_party/WebKit/Source/platform/text/Hyphenation.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..357ffb78a9cb5c0184b227771e1e73bd9e7088f2
--- /dev/null
+++ b/third_party/WebKit/Source/platform/text/Hyphenation.cpp
@@ -0,0 +1,36 @@
+// Copyright 2016 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 "wtf/text/StringView.h"
+
+namespace blink {
+
+Hyphenation::HyphenationMap& Hyphenation::getHyphenationMap()
+{
+    DEFINE_STATIC_LOCAL(HyphenationMap, hyphenationMap, ());
+    return hyphenationMap;
+}
+
+Hyphenation* Hyphenation::get(const AtomicString& locale)
+{
+    Hyphenation::HyphenationMap& hyphenationMap = getHyphenationMap();
+    auto result = hyphenationMap.add(locale, nullptr);
+    if (result.isNewEntry)
+        result.storedValue->value = platformGetHyphenation(locale);
+    return result.storedValue->value.get();
+}
+
+void Hyphenation::setForTesting(const AtomicString& locale, PassRefPtr<Hyphenation> hyphenation)
+{
+    getHyphenationMap().set(locale, hyphenation);
+}
+
+void Hyphenation::clearForTesting()
+{
+    getHyphenationMap().clear();
+}
+
+} // namespace blink