Update mhtml saved page header to "Saved by Blink"

Source/platform/mhtml/MHTMLArchive.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 114 matching lines @@
 PassRefPtr<SharedBuffer> MHTMLArchive::generateMHTMLData(const Vector<SerializedResource>& resources, EncodingPolicy encodingPolicy, const String& title, const String& mimeType)
 {
     String boundary = generateRandomBoundary();
     String endOfResourceBoundary = "--" + boundary + "\r\n";
 
     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.appendLiteral("From: <Saved by WebKit>\r\n");
+    stringBuilder.appendLiteral("From: <Saved by Blink>\r\n");
     stringBuilder.appendLiteral("Subject: ");
     // We replace non ASCII characters with '?' characters to match IE's behavior.
     stringBuilder.append(replaceNonPrintableCharacters(title));
     stringBuilder.appendLiteral("\r\nDate: ");
     stringBuilder.append(dateString);
     stringBuilder.appendLiteral("\r\nMIME-Version: 1.0\r\n");
     stringBuilder.appendLiteral("Content-Type: multipart/related;\r\n");
     stringBuilder.appendLiteral("\ttype=\"");
     stringBuilder.append(mimeType);
     stringBuilder.appendLiteral("\";\r\n");
@@ skipping 106 matching lines @@
 }
 
 void MHTMLArchive::trace(Visitor* visitor)
 {
     visitor->trace(m_mainResource);
     visitor->trace(m_subresources);
     visitor->trace(m_subframeArchives);
 }
 
 }