Rename WebCore namespace to blink in Platform

Source/platform/text/UnicodeUtilities.h

Index: Source/platform/text/UnicodeUtilities.h
diff --git a/Source/platform/text/UnicodeUtilities.h b/Source/platform/text/UnicodeUtilities.h
index f0504c3413471d65c1ee64ef5ae3b66cf6a11b26..86cc5fa296d57bbd54684a7bc4cab817793e4c89 100644
--- a/Source/platform/text/UnicodeUtilities.h
+++ b/Source/platform/text/UnicodeUtilities.h
@@ -31,7 +31,7 @@
 #include "wtf/text/WTFString.h"
 #include "wtf/unicode/Unicode.h"
 
-namespace WebCore {
+namespace blink {
 
 PLATFORM_EXPORT bool isSeparator(UChar32);
 PLATFORM_EXPORT bool isKanaLetter(UChar character);
@@ -42,6 +42,6 @@ PLATFORM_EXPORT void foldQuoteMarksAndSoftHyphens(String&);
 PLATFORM_EXPORT bool checkOnlyKanaLettersInStrings(const UChar* firstData, unsigned firstLength, const UChar* secondData, unsigned secondLength);
 PLATFORM_EXPORT bool checkKanaStringsEqual(const UChar* firstData, unsigned firstLength, const UChar* secondData, unsigned secondLength);
 
-} // namespace WebCore
+} // namespace blink
 
 #endif // UnicodeUtilities_h