Revert "Update includes for webrtc/{base => rtc_base} rename (3/3)"

webrtc/rtc_base/string_to_number_unittest.cc

Index: webrtc/rtc_base/string_to_number_unittest.cc
diff --git a/webrtc/rtc_base/string_to_number_unittest.cc b/webrtc/rtc_base/string_to_number_unittest.cc
index 2c1aeceaac6c9e6e2b81a1cc5b46538004242385..00ebd4cae4f05a04683c4cb16cbe7bd4c1182831 100644
--- a/webrtc/rtc_base/string_to_number_unittest.cc
+++ b/webrtc/rtc_base/string_to_number_unittest.cc
@@ -8,13 +8,13 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/rtc_base/string_to_number.h"
+#include "webrtc/base/string_to_number.h"
 
 #include <string>
 #include <type_traits>
 #include <limits>
 
-#include "webrtc/rtc_base/gunit.h"
+#include "webrtc/base/gunit.h"
 
 namespace rtc {