Move files in wtf/ to platform/wtf/ (Part 4).

third_party/WebKit/Source/platform/wtf/text/Unicode.h

Index: third_party/WebKit/Source/platform/wtf/text/Unicode.h
diff --git a/third_party/WebKit/Source/wtf/text/Unicode.h b/third_party/WebKit/Source/platform/wtf/text/Unicode.h
similarity index 93%
copy from third_party/WebKit/Source/wtf/text/Unicode.h
copy to third_party/WebKit/Source/platform/wtf/text/Unicode.h
index 56064b153e8d1229b69cc40ffbdc8d5ea19f60ae..d4712059cbf93bb2fe5a0c5977eb824c532832b5 100644
--- a/third_party/WebKit/Source/wtf/text/Unicode.h
+++ b/third_party/WebKit/Source/platform/wtf/text/Unicode.h
@@ -23,12 +23,12 @@
 #ifndef WTF_Unicode_h
 #define WTF_Unicode_h
 
-#include "wtf/Assertions.h"
+#include "platform/wtf/Assertions.h"
 
 // Define platform neutral 8 bit character type (L is for Latin-1).
 typedef unsigned char LChar;
 
-#include "wtf/text/icu/UnicodeIcu.h"
+#include "platform/wtf/text/icu/UnicodeIcu.h"
 
 static_assert(sizeof(UChar) == 2, "UChar should be two bytes");