base: Move SplitString functions into the base namespace and update the callers.

chrome_frame/chrome_frame_activex.cc

Index: chrome_frame/chrome_frame_activex.cc
diff --git a/chrome_frame/chrome_frame_activex.cc b/chrome_frame/chrome_frame_activex.cc
index 5aa9294c5782b18b10ddf6d754f91d2e0d71ec0f..f137aad2e66da101edcf35e254dd52c469d7fa04 100644
--- a/chrome_frame/chrome_frame_activex.cc
+++ b/chrome_frame/chrome_frame_activex.cc
@@ -445,10 +445,10 @@ HRESULT ChromeFrameActivex::IOleObject_SetClientSite(
         std::string automated_functions(
             WideToASCII(static_cast<BSTR>(automated_functions_arg)));
         functions_enabled_.clear();
-        // SplitString writes one empty entry for blank strings, so we need this
-        // to allow specifying zero automation of API functions.
+        // base::SplitString writes one empty entry for blank strings, so we
+        // need this to allow specifying zero automation of API functions.
         if (!automated_functions.empty())
-          SplitString(automated_functions, ',', &functions_enabled_);
+          base::SplitString(automated_functions, ',', &functions_enabled_);
       }
 
       ScopedBstr profile_name_arg;