Revert of Remove some legacy versions of StartsWith and EndsWith.

dbus/string_util.cc

Index: dbus/string_util.cc
diff --git a/dbus/string_util.cc b/dbus/string_util.cc
index 16e483a5feabd3925649dc4f252b4434965b91c1..0b0778603088ccfe3ee649a38c3a1505f1572bc4 100644
--- a/dbus/string_util.cc
+++ b/dbus/string_util.cc
@@ -8,10 +8,13 @@
 
 namespace dbus {
 
-// This implementation is based upon D-Bus Specification Version 0.19.
 bool IsValidObjectPath(const std::string& value) {
+  // This implementation is based upon D-Bus Specification Version 0.19.
+
+  const bool kCaseSensitive = true;
+
   // A valid object path begins with '/'.
-  if (!base::StartsWith(value, "/", base::CompareCase::SENSITIVE))
+  if (!base::StartsWithASCII(value, "/", kCaseSensitive))
     return false;
 
   // Elements are pieces delimited by '/'. For instance, "org", "chromium",
@@ -36,8 +39,7 @@
   }
 
   // A trailing '/' character is not allowed unless the path is the root path.
-  if (value.size() > 1 &&
-      base::EndsWith(value, "/", base::CompareCase::SENSITIVE))
+  if (value.size() > 1 && base::EndsWith(value, "/", kCaseSensitive))
     return false;
 
   return true;