Move StringToUpperASCII and LowerCaseEqualsASCII to the base namespace

chrome/browser/io_thread.cc

Index: chrome/browser/io_thread.cc
diff --git a/chrome/browser/io_thread.cc b/chrome/browser/io_thread.cc
index a3773f6a4b2883054b44c7867cec4e85909fa7f4..ff1984ed7a23e478e0ac7e83c115ee384bc51dff 100644
--- a/chrome/browser/io_thread.cc
+++ b/chrome/browser/io_thread.cc
@@ -1243,9 +1243,9 @@ bool IOThread::ShouldEnableQuicPacing(
   if (command_line.HasSwitch(switches::kDisableQuicPacing))
     return false;
 
-  if (LowerCaseEqualsASCII(
-      GetVariationParam(quic_trial_params, "enable_pacing"),
-      "true"))
+  if (base::LowerCaseEqualsASCII(
+          GetVariationParam(quic_trial_params, "enable_pacing"),
+          "true"))
     return true;
 
   return quic_trial_group.ends_with(kQuicFieldTrialPacingSuffix);
@@ -1321,9 +1321,10 @@ bool IOThread::ShouldEnableQuicTimeBasedLossDetection(
   if (command_line.HasSwitch(switches::kDisableQuicTimeBasedLossDetection))
     return false;
 
-  if (LowerCaseEqualsASCII(
-      GetVariationParam(quic_trial_params, "enable_time_based_loss_detection"),
-      "true"))
+  if (base::LowerCaseEqualsASCII(
+          GetVariationParam(quic_trial_params,
+                            "enable_time_based_loss_detection"),
+          "true"))
     return true;
 
   return quic_trial_group.ends_with(