Teach WebString about 8 bit strings

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 17649317babf081f32266f1395a0778b7621cb8c..8f9b9a63f1a86c847525b7340f197cb2ae40183c 100644
--- a/Source/core/platform/chromium/support/WebString.cpp
+++ b/Source/core/platform/chromium/support/WebString.cpp
@@ -70,6 +70,23 @@ const WebUChar* WebString::data() const
     return m_private ? const_cast<WebStringPrivate*>(m_private)->characters() : 0;
 }
 
+bool WebString::is8Bit() const
+{
+    return m_private->is8Bit();
+}
+
+const WebLChar* WebString::data8() const
+{
+    ASSERT(is8Bit());
+    return m_private->characters8();
+}
+
+const WebUChar* WebString::data16() const
+{
+    ASSERT(!is8Bit());
+    return m_private->characters16();
+}
+
 WebCString WebString::utf8() const
 {
     return WTF::String(m_private).utf8();