Implement 'normal', 'strict', and 'loose' of the 'line-break' property

third_party/WebKit/Source/platform/LayoutLocale.h

Index: third_party/WebKit/Source/platform/LayoutLocale.h
diff --git a/third_party/WebKit/Source/platform/LayoutLocale.h b/third_party/WebKit/Source/platform/LayoutLocale.h
index f92811c82f863638acdac7285d8dfbdeb46b4c2e..66e9f1a838e227095ba8c9263c358acb52b02373 100644
--- a/third_party/WebKit/Source/platform/LayoutLocale.h
+++ b/third_party/WebKit/Source/platform/LayoutLocale.h
@@ -19,6 +19,8 @@ namespace blink {
 
 class Hyphenation;
 
+enum class LineBreakIteratorMode { Default, Normal, Strict, Loose };
+
 class PLATFORM_EXPORT LayoutLocale : public RefCounted<LayoutLocale> {
  public:
   static const LayoutLocale* get(const AtomicString& locale);
@@ -57,6 +59,8 @@ class PLATFORM_EXPORT LayoutLocale : public RefCounted<LayoutLocale> {
 
   Hyphenation* getHyphenation() const;
 
+  AtomicString localeWithBreakKeyword(LineBreakIteratorMode) const;
+
   static PassRefPtr<LayoutLocale> createForTesting(const AtomicString&);
   static void clearForTesting();
   static void setHyphenationForTesting(const AtomicString&,