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

chrome/test/automated_ui_tests/automated_ui_tests.cc

Index: chrome/test/automated_ui_tests/automated_ui_tests.cc
diff --git a/chrome/test/automated_ui_tests/automated_ui_tests.cc b/chrome/test/automated_ui_tests/automated_ui_tests.cc
index 44368678d38c7abb304a385b48de5bf9777e05da..047c18a800776240c5ef211308ff87a23d07beea 100644
--- a/chrome/test/automated_ui_tests/automated_ui_tests.cc
+++ b/chrome/test/automated_ui_tests/automated_ui_tests.cc
@@ -153,7 +153,7 @@ void AutomatedUITest::RunReproduction() {
         &num_reproductions);
   }
   std::vector<std::string> actions;
-  SplitString(action_string, ',', &actions);
+  base::SplitString(action_string, ',', &actions);
   bool did_crash = false;
   bool command_complete = false;