Revert of Remove some legacy versions of StartsWith and EndsWith.

chrome/common/importer/firefox_importer_utils.cc

Index: chrome/common/importer/firefox_importer_utils.cc
diff --git a/chrome/common/importer/firefox_importer_utils.cc b/chrome/common/importer/firefox_importer_utils.cc
index 46e120c304e4cfeace63f1663c7e0a201cfc8dec..2ca5c4c5d68938b166ee31175255984aa8a79d76 100644
--- a/chrome/common/importer/firefox_importer_utils.cc
+++ b/chrome/common/importer/firefox_importer_utils.cc
@@ -116,8 +116,7 @@
   // append Contents/MacOS.
   for (size_t i = 1; i < path_components.size(); ++i) {
     *output = output->Append(path_components[i]);
-    if (base::EndsWith(path_components[i], ".app",
-                       base::CompareCase::SENSITIVE)) {
+    if (base::EndsWith(path_components[i], ".app", true)) {
       *output = output->Append("Contents");
       *output = output->Append("MacOS");
       return true;