Fix some case-insensitive cases for StartsWith

components/autofill/content/renderer/autofill_agent.cc

 // Copyright 2013 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 "components/autofill/content/renderer/autofill_agent.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/command_line.h"
+#include "base/i18n/case_conversion.h"
 #include "base/location.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/string_split.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/thread_task_runner_handle.h"
 #include "base/time/time.h"
 #include "components/autofill/content/common/autofill_messages.h"
 #include "components/autofill/content/renderer/form_autofill_util.h"
 #include "components/autofill/content/renderer/page_click_tracker.h"
@@ skipping 60 matching lines @@
                             std::vector<base::string16>* values,
                             std::vector<base::string16>* labels) {
   WebElementCollection options = element.dataListOptions();
   if (options.isNull())
     return;
 
   base::string16 prefix;
   if (!ignore_current_value) {
     prefix = element.editingValue();
     if (element.isMultiple() && element.isEmailField()) {
-      std::vector<base::string16> parts;
-      base::SplitStringDontTrim(prefix, ',', &parts);
+      const base::char16 comma[2] = { ',', 0 };
+      std::vector<base::string16> parts = base::SplitString(
+          prefix, comma, base::KEEP_WHITESPACE, base::SPLIT_WANT_ALL);
       if (parts.size() > 0) {
         base::TrimWhitespace(parts[parts.size() - 1], base::TRIM_LEADING,
                              &prefix);
       }
     }
   }
+  prefix = base::i18n::ToLower(prefix);
   for (WebOptionElement option = options.firstItem().to<WebOptionElement>();
        !option.isNull(); option = options.nextItem().to<WebOptionElement>()) {
-    if (!base::StartsWith(option.value(), prefix, false) ||
-        option.value() == prefix || !element.isValidValue(option.value()))
+    if (!base::StartsWith(base::i18n::ToLower(base::string16(option.value())),
+                          prefix, base::CompareCase::SENSITIVE) ||
+        !element.isValidValue(option.value()))
       continue;
 
     values->push_back(option.value());
     if (option.value() != option.label())
       labels->push_back(option.label());
     else
       labels->push_back(base::string16());
   }
 }
 
@@ skipping 693 matching lines @@
 
 void AutofillAgent::LegacyAutofillAgent::OnDestruct() {
   // No-op. Don't delete |this|.
 }
 
 void AutofillAgent::LegacyAutofillAgent::FocusChangeComplete() {
   agent_->FocusChangeComplete();
 }
 
 }  // namespace autofill