Introduce String::fromUTF8Lenient() and use it for cache_name in CacheStorage API.

third_party/WebKit/Source/platform/exported/WebString.cpp

 /*
  * Copyright (C) 2009 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 71 matching lines @@
 WebString WebString::fromUTF8(const char* data, size_t length)
 {
     return String::fromUTF8(data, length);
 }
 
 WebString WebString::fromUTF8(const char* data)
 {
     return String::fromUTF8(data);
 }
 
+WebString WebString::fromUTF8Lenient(const char* data, size_t length)
+{
+    return String::fromUTF8Lenient(data, length);
+}
+
 std::string WebString::latin1() const
 {
     String string(m_private.get());
 
     if (string.isEmpty())
         return std::string();
 
     if (string.is8Bit())
         return std::string(reinterpret_cast<const char*>(string.characters8()), string.length());
 
@@ skipping 47 matching lines @@
 {
     return WTF::AtomicString(m_private.get());
 }
 
 void WebString::assign(WTF::StringImpl* p)
 {
     m_private = p;
 }
 
 } // namespace blink