Rename OS(WINDOWS) to OS(WIN)

Source/core/platform/graphics/FontCache.h

Index: Source/core/platform/graphics/FontCache.h
diff --git a/Source/core/platform/graphics/FontCache.h b/Source/core/platform/graphics/FontCache.h
index 1951019522ed2771dbde4fb9724ab08c8c9630b8..882b5eeb7b1039573497e05c80a64fda5d71e9f8 100644
--- a/Source/core/platform/graphics/FontCache.h
+++ b/Source/core/platform/graphics/FontCache.h
@@ -39,13 +39,13 @@
 #include "wtf/text/WTFString.h"
 #include "wtf/unicode/Unicode.h"
 
-#if OS(WINDOWS)
+#if OS(WIN)
 #include <windows.h>
 #include <objidl.h>
 #include <mlang.h>
 #endif
 
-#if OS(WINDOWS) && !ENABLE(GDI_FONTS_ON_WINDOWS)
+#if OS(WIN) && !ENABLE(GDI_FONTS_ON_WINDOWS)
 #include "SkFontMgr.h"
 #endif
 
@@ -97,7 +97,7 @@ public:
     size_t inactiveFontDataCount();
     void purgeInactiveFontData(int count = INT_MAX);
 
-#if OS(WINDOWS)
+#if OS(WIN)
     PassRefPtr<SimpleFontData> fontDataFromDescriptionAndLogFont(const FontDescription&, ShouldRetain, const LOGFONT&, wchar_t* outFontFamilyName);
 #endif
 
@@ -143,7 +143,7 @@ private:
     // Don't purge if this count is > 0;
     int m_purgePreventCount;
 
-#if OS(WINDOWS) && !ENABLE(GDI_FONTS_ON_WINDOWS)
+#if OS(WIN) && !ENABLE(GDI_FONTS_ON_WINDOWS)
     OwnPtr<SkFontMgr> m_fontManager;
 #endif