Continue to clean c_str() calls.

chrome/browser/profiles/profile_avatar_icon_util.cc

 // Copyright 2014 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 "chrome/browser/profiles/profile_avatar_icon_util.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/files/file_util.h"
@@ skipping 527 matching lines @@
     if (!file_name.empty()) {
       pos = old_path.find(file_name);
       end = pos - 1;
     }
   }
 
   if (pos != std::string::npos) {
     std::string new_path = old_path.substr(0, pos) + new_size_component +
                            old_path.substr(end);
     GURL::Replacements replacement;
-    replacement.SetPathStr(new_path.c_str());
+    replacement.SetPathStr(new_path);
     *new_url = old_url.ReplaceComponents(replacement);
     return new_url->is_valid();
   }
 
   // We can't set the image size, just use the default size.
   *new_url = old_url;
   return true;
 }
 
 std::unique_ptr<base::ListValue> GetDefaultProfileAvatarIconsAndLabels() {
   std::unique_ptr<base::ListValue> avatars(new base::ListValue());
 
   const size_t placeholder_avatar_index = profiles::GetPlaceholderAvatarIndex();
   for (size_t i = 0; i < profiles::GetDefaultAvatarIconCount() &&
                      i != placeholder_avatar_index;
        ++i) {
     std::unique_ptr<base::DictionaryValue> avatar_info(
         new base::DictionaryValue());
     avatar_info->SetString("url", profiles::GetDefaultAvatarIconUrl(i));
     avatar_info->SetString(
         "label", l10n_util::GetStringUTF16(
                      profiles::GetDefaultAvatarLabelResourceIDAtIndex(i)));
 
     avatars->Append(std::move(avatar_info));
   }
   return avatars;
 }
 
 }  // namespace profiles