Expose latin1 methods in WebString

Source/core/platform/chromium/support/WebString.cpp

Index: Source/core/platform/chromium/support/WebString.cpp
diff --git a/Source/core/platform/chromium/support/WebString.cpp b/Source/core/platform/chromium/support/WebString.cpp
index 4b5dd6b5150a70ab631a9f766e4d8746c1b78cb3..be8151cf06fb2b462d1e23aa994cbe04942e20b8 100644
--- a/Source/core/platform/chromium/support/WebString.cpp
+++ b/Source/core/platform/chromium/support/WebString.cpp
@@ -96,6 +96,22 @@ WebString WebString::fromUTF8(const char* data)
     return WTF::String::fromUTF8(data);
 }
 
+std::string WebString::latin1() const
+{
+    String string(m_private.get());
+
+    if (string.is8Bit())

[abarth-chromium, 2013/09/03 15:46:40]

You need to handle the isEmpty() case as well.  You can't call is8Bit on an
empty string.

if (string.isEmpty())
    return std::string();

should be sufficient.

[davidben, 2013/09/03 17:58:25]

Done.

+        return std::string(reinterpret_cast<const char*>(string.characters8()), string.length());
+
+    WebCString latin1 = string.latin1();
+    return std::string(latin1.data(), latin1.length());
+}
+
+WebString WebString::fromLatin1(const char* data, size_t length)
+{
+    return String(data, length);
+}
+
 bool WebString::equals(const WebString& s) const
 {
     return equal(m_private.get(), s.m_private.get());