Add toStdString methods to CString and WTF::String

third_party/WebKit/Source/wtf/text/CStringTest.cpp

 /*
  * Copyright (C) 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 90 matching lines @@
 
 TEST(CStringTest, CopyOnWrite)
 {
     const char* initialString = "Webkit";
     CString string(initialString);
     CString copy = string;
 
     string.mutableData()[3] = 'K';
     EXPECT_TRUE(string != copy);
     EXPECT_STREQ("WebKit", string.data());
+    EXPECT_EQ("WebKit", string.toStdString());
     EXPECT_STREQ(initialString, copy.data());
+    EXPECT_EQ(initialString, copy.toStdString());
 }
 
 TEST(CStringTest, Comparison)
 {
     // Comparison with another CString.
     CString a;
     CString b;
     EXPECT_TRUE(a == b);
     EXPECT_FALSE(a != b);
     a = "a";
@@ skipping 70 matching lines @@
     d = "";
     EXPECT_FALSE(c == d);
     EXPECT_TRUE(c != d);
     c = "";
     d = "b";
     EXPECT_FALSE(c == d);
     EXPECT_TRUE(c != d);
 }
 
 } // namespace WTF