Replace ToLower calls to the new format

base/command_line.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 
 #include <algorithm>
 #include <ostream>
 
 #include "base/basictypes.h"
@@ skipping 249 matching lines @@
 
 FilePath CommandLine::GetProgram() const {
   return FilePath(argv_[0]);
 }
 
 void CommandLine::SetProgram(const FilePath& program) {
   TrimWhitespace(program.value(), TRIM_ALL, &argv_[0]);
 }
 
 bool CommandLine::HasSwitch(const base::StringPiece& switch_string) const {
-  DCHECK_EQ(StringToLowerASCII(switch_string.as_string()), switch_string);
+  DCHECK_EQ(ToLowerASCII(switch_string), switch_string);
   return switches_by_stringpiece_.find(switch_string) !=
          switches_by_stringpiece_.end();
 }
 
 bool CommandLine::HasSwitch(const char switch_constant[]) const {
   return HasSwitch(base::StringPiece(switch_constant));
 }
 
 std::string CommandLine::GetSwitchValueASCII(
     const base::StringPiece& switch_string) const {
   StringType value = GetSwitchValueNative(switch_string);
   if (!IsStringASCII(value)) {
     DLOG(WARNING) << "Value of switch (" << switch_string << ") must be ASCII.";
     return std::string();
   }
 #if defined(OS_WIN)
   return UTF16ToASCII(value);
 #else
   return value;
 #endif
 }
 
 FilePath CommandLine::GetSwitchValuePath(
     const base::StringPiece& switch_string) const {
   return FilePath(GetSwitchValueNative(switch_string));
 }
 
 CommandLine::StringType CommandLine::GetSwitchValueNative(
     const base::StringPiece& switch_string) const {
-  DCHECK_EQ(StringToLowerASCII(switch_string.as_string()), switch_string);
+  DCHECK_EQ(ToLowerASCII(switch_string), switch_string);
   auto result = switches_by_stringpiece_.find(switch_string);
   return result == switches_by_stringpiece_.end() ? StringType()
                                                   : *(result->second);
 }
 
 void CommandLine::AppendSwitch(const std::string& switch_string) {
   AppendSwitchNative(switch_string, StringType());
 }
 
 void CommandLine::AppendSwitchPath(const std::string& switch_string,
                                    const FilePath& path) {
   AppendSwitchNative(switch_string, path.value());
 }
 
 void CommandLine::AppendSwitchNative(const std::string& switch_string,
                                      const CommandLine::StringType& value) {
 #if defined(OS_WIN)
-  const std::string switch_key = StringToLowerASCII(switch_string);
+  const std::string switch_key = ToLowerASCII(switch_string);
   StringType combined_switch_string(ASCIIToUTF16(switch_key));
 #elif defined(OS_POSIX)
   const std::string& switch_key = switch_string;
   StringType combined_switch_string(switch_key);
 #endif
   size_t prefix_length = GetSwitchPrefixLength(combined_switch_string);
   auto insertion =
       switches_.insert(make_pair(switch_key.substr(prefix_length), value));
   if (!insertion.second)
     insertion.first->second = value;
@@ skipping 136 matching lines @@
   return params;
 }
 
 void CommandLine::ResetStringPieces() {
   switches_by_stringpiece_.clear();
   for (const auto& entry : switches_)
     switches_by_stringpiece_[entry.first] = &(entry.second);
 }
 
 }  // namespace base