Remove compatibility #defines in string_util.h

chrome/test/chrome_plugin/test_chrome_plugin.cc

Index: chrome/test/chrome_plugin/test_chrome_plugin.cc
diff --git a/chrome/test/chrome_plugin/test_chrome_plugin.cc b/chrome/test/chrome_plugin/test_chrome_plugin.cc
index 734320537ffb09aafd24966304363a6e0f2423fa..9e6d0e0ae44fb7959a5de9ec6b8cfa54c35941c6 100644
--- a/chrome/test/chrome_plugin/test_chrome_plugin.cc
+++ b/chrome/test/chrome_plugin/test_chrome_plugin.cc
@@ -169,8 +169,8 @@ CPError STDCALL CPP_Shutdown() {
 }
 
 CPBool STDCALL CPP_ShouldInterceptRequest(CPRequest* request) {
-  DCHECK(StrNCaseCmp(request->url, kChromeTestPluginProtocol,
-                     arraysize(kChromeTestPluginProtocol) - 1) == 0);
+  DCHECK(base::strncasecmp(request->url, kChromeTestPluginProtocol,
+                           arraysize(kChromeTestPluginProtocol) - 1) == 0);
   return FindPayload(request->url) != NULL;
 }