Add toStdString methods to CString and WTF::String

third_party/WebKit/Source/wtf/text/CString.h

 /*
  * Copyright (C) 2003, 2006, 2008, 2009, 2010, 2012 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef CString_h
 #define CString_h
 
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/WTFExport.h"
+#include <string>
 
 namespace WTF {
 
 // CStringBuffer is the ref-counted storage class for the characters in a CString.
 // The data is implicitly allocated 1 character longer than length(), as it is zero-terminated.
 class WTF_EXPORT CStringBuffer : public RefCounted<CStringBuffer> {
 public:
     const char* data() { return mutableData(); }
     size_t length() const { return m_length; }
 
@@ skipping 15 matching lines @@
 // A container for a null-terminated char array supporting copy-on-write
 // assignment.  The contained char array may be null.
 class WTF_EXPORT CString {
 public:
     CString() { }
     CString(const char*);
     CString(const char*, size_t length);
     CString(CStringBuffer* buffer) : m_buffer(buffer) { }
     static CString newUninitialized(size_t length, char*& characterBuffer);
 
+    // This method should be used ONLY to pass a WTFString to methods outside
+    // of blink which take a std::string as an argument.
+    std::string toStdString() const
+    {
+        return std::string(data(), length());
+    }
+
     const char* data() const
     {
         return m_buffer ? m_buffer->data() : 0;
     }
     char* mutableData();
     size_t length() const
     {
         return m_buffer ? m_buffer->length() : 0;
     }
 
@@ skipping 11 matching lines @@
 WTF_EXPORT bool operator==(const CString& a, const CString& b);
 inline bool operator!=(const CString& a, const CString& b) { return !(a == b); }
 WTF_EXPORT bool operator==(const CString& a, const char* b);
 inline bool operator!=(const CString& a, const char* b) { return !(a == b); }
 
 } // namespace WTF
 
 using WTF::CString;
 
 #endif // CString_h