Update base::StartsWith calls to new form

chrome/browser/policy/policy_prefs_browsertest.cc

Index: chrome/browser/policy/policy_prefs_browsertest.cc
diff --git a/chrome/browser/policy/policy_prefs_browsertest.cc b/chrome/browser/policy/policy_prefs_browsertest.cc
index bd5379032386091f5d2cdd583e8a83a00c4f8161..503c5f944dea268ef7f355db984a9673c8d060f8 100644
--- a/chrome/browser/policy/policy_prefs_browsertest.cc
+++ b/chrome/browser/policy/policy_prefs_browsertest.cc
@@ -559,8 +559,8 @@ IN_PROC_BROWSER_TEST_F(PolicyPrefsTest, PolicyToPrefsMapping) {
            ++pref_mapping) {
         // Skip Chrome OS preferences that use a different backend and cannot be
         // retrieved through the prefs mechanism.
-        if (base::StartsWithASCII((*pref_mapping)->pref(), kCrosSettingsPrefix,
-                                  true))
+        if (base::StartsWith((*pref_mapping)->pref(), kCrosSettingsPrefix,
+                             base::CompareCase::SENSITIVE))
           continue;
 
         // Skip preferences that should not be checked when the policy is set to