Kill WTF::GregorianDateTime class

Source/platform/mhtml/MHTMLArchive.cpp

Index: Source/platform/mhtml/MHTMLArchive.cpp
diff --git a/Source/platform/mhtml/MHTMLArchive.cpp b/Source/platform/mhtml/MHTMLArchive.cpp
index e22207361fd23399127fff7b861bb3bfe97b3784..fe1ecc39b2080e043e174b9b53cb1c837f2daf7d 100644
--- a/Source/platform/mhtml/MHTMLArchive.cpp
+++ b/Source/platform/mhtml/MHTMLArchive.cpp
@@ -31,6 +31,7 @@
 #include "config.h"
 #include "platform/mhtml/MHTMLArchive.h"
 
+#include "platform/DateComponents.h"
 #include "platform/MIMETypeRegistry.h"
 #include "platform/SerializedResource.h"
 #include "platform/SharedBuffer.h"
@@ -39,7 +40,6 @@
 #include "platform/weborigin/SchemeRegistry.h"
 #include "wtf/CryptographicallyRandomNumber.h"
 #include "wtf/DateMath.h"
-#include "wtf/GregorianDateTime.h"
 #include "wtf/text/Base64.h"
 #include "wtf/text/StringBuilder.h"
 
@@ -124,9 +124,9 @@ PassRefPtr<SharedBuffer> MHTMLArchive::generateMHTMLData(const Vector<Serialized
     String boundary = generateRandomBoundary();
     String endOfResourceBoundary = "--" + boundary + "\r\n";
 
-    GregorianDateTime now;
-    now.setToCurrentLocalTime();
-    String dateString = makeRFC2822DateString(now.weekDay(), now.monthDay(), now.month(), now.year(), now.hour(), now.minute(), now.second(), now.utcOffset() / 60);
+    DateComponents now;
+    now.setMillisecondsSinceEpochForDateTime(currentTimeMS());
+    String dateString = makeRFC2822DateString(now.weekDay(), now.monthDay(), now.month(), now.fullYear(), now.hour(), now.minute(), now.second(), 0);
 
     StringBuilder stringBuilder;
     stringBuilder.append("From: <Saved by WebKit>\r\n");