Move TextJustify to its own file.

third_party/WebKit/Source/platform/text/TextRun.h

Index: third_party/WebKit/Source/platform/text/TextRun.h
diff --git a/third_party/WebKit/Source/platform/text/TextRun.h b/third_party/WebKit/Source/platform/text/TextRun.h
index 2fe7e4e1a0a150886c0bc311652fab4f419bad70..9eacc5559fb62755560b2b602e02cca7babe4eca 100644
--- a/third_party/WebKit/Source/platform/text/TextRun.h
+++ b/third_party/WebKit/Source/platform/text/TextRun.h
@@ -30,6 +30,7 @@
 #include "platform/heap/Heap.h"
 #include "platform/text/TabSize.h"
 #include "platform/text/TextDirection.h"
+#include "platform/text/TextJustify.h"
 #include "platform/wtf/Allocator.h"
 #include "platform/wtf/text/StringView.h"
 #include "platform/wtf/text/WTFString.h"
@@ -39,13 +40,6 @@
 
 namespace blink {
 
-enum TextJustify {
-  kTextJustifyAuto = 0x0,
-  kTextJustifyNone = 0x1,
-  kTextJustifyInterWord = 0x2,
-  kTextJustifyDistribute = 0x3
-};
-
 class PLATFORM_EXPORT TextRun final {
   DISALLOW_NEW();