Revert of Remove StringBuilder::appendLiteral.

third_party/WebKit/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 87 matching lines @@
     ASSERT(!mimeType.isEmpty());
 
     DateComponents now;
     now.setMillisecondsSinceEpochForDateTime(currentTimeMS());
     // TODO(lukasza): Passing individual date/time components seems fragile.
     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 Blink>\r\n");
-    stringBuilder.append("Subject: ");
+    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.append("\r\nDate: ");
+    stringBuilder.appendLiteral("\r\nDate: ");
     stringBuilder.append(dateString);
-    stringBuilder.append("\r\nMIME-Version: 1.0\r\n");
-    stringBuilder.append("Content-Type: multipart/related;\r\n");
-    stringBuilder.append("\ttype=\"");
+    stringBuilder.appendLiteral("\r\nMIME-Version: 1.0\r\n");
+    stringBuilder.appendLiteral("Content-Type: multipart/related;\r\n");
+    stringBuilder.appendLiteral("\ttype=\"");
     stringBuilder.append(mimeType);
-    stringBuilder.append("\";\r\n");
-    stringBuilder.append("\tboundary=\"");
+    stringBuilder.appendLiteral("\";\r\n");
+    stringBuilder.appendLiteral("\tboundary=\"");
     stringBuilder.append(boundary);
-    stringBuilder.append("\"\r\n\r\n");
+    stringBuilder.appendLiteral("\"\r\n\r\n");
 
     // We use utf8() below instead of ascii() as ascii() replaces CRLFs with ??
     // (we still only have put ASCII characters in it).
     ASSERT(stringBuilder.toString().containsOnlyASCII());
     CString asciiString = stringBuilder.toString().utf8();
 
     outputBuffer.append(asciiString.data(), asciiString.length());
 }
 
 void MHTMLArchive::generateMHTMLPart(
     const String& boundary,
     const String& contentID,
     EncodingPolicy encodingPolicy,
     const SerializedResource& resource,
     SharedBuffer& outputBuffer)
 {
     ASSERT(!boundary.isEmpty());
     ASSERT(contentID.isEmpty() || contentID[0] == '<');
 
     StringBuilder stringBuilder;
     stringBuilder.append("--");
     stringBuilder.append(boundary);
     stringBuilder.append("\r\n");
 
-    stringBuilder.append("Content-Type: ");
+    stringBuilder.appendLiteral("Content-Type: ");
     stringBuilder.append(resource.mimeType);
-    stringBuilder.append("\r\n");
+    stringBuilder.appendLiteral("\r\n");
 
     if (!contentID.isEmpty()) {
-        stringBuilder.append("Content-ID: ");
+        stringBuilder.appendLiteral("Content-ID: ");
         stringBuilder.append(contentID);
-        stringBuilder.append("\r\n");
+        stringBuilder.appendLiteral("\r\n");
     }
 
     const char* contentEncoding = 0;
     if (encodingPolicy == UseBinaryEncoding)
         contentEncoding = binary;
     else if (MIMETypeRegistry::isSupportedJavaScriptMIMEType(resource.mimeType) || MIMETypeRegistry::isSupportedNonImageMIMEType(resource.mimeType))
         contentEncoding = quotedPrintable;
     else
         contentEncoding = base64;
 
-    stringBuilder.append("Content-Transfer-Encoding: ");
+    stringBuilder.appendLiteral("Content-Transfer-Encoding: ");
     stringBuilder.append(contentEncoding);
-    stringBuilder.append("\r\n");
+    stringBuilder.appendLiteral("\r\n");
 
     if (!resource.url.protocolIsAbout()) {
-        stringBuilder.append("Content-Location: ");
+        stringBuilder.appendLiteral("Content-Location: ");
         stringBuilder.append(resource.url.getString());
-        stringBuilder.append("\r\n");
+        stringBuilder.appendLiteral("\r\n");
     }
 
-    stringBuilder.append("\r\n");
+    stringBuilder.appendLiteral("\r\n");
 
     CString asciiString = stringBuilder.toString().utf8();
     outputBuffer.append(asciiString.data(), asciiString.length());
 
     if (!strcmp(contentEncoding, binary)) {
         const char* data;
         size_t position = 0;
         while (size_t length = resource.data->getSomeData(data, position)) {
             outputBuffer.append(data, length);
             position += length;
@@ skipping 52 matching lines @@
     return m_subresources.get(url.getString());
 }
 
 DEFINE_TRACE(MHTMLArchive)
 {
     visitor->trace(m_mainResource);
     visitor->trace(m_subresources);
 }
 
 } // namespace blink