Revert of Remove some legacy versions of StartsWith and EndsWith.

components/omnibox/browser/keyword_provider.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 "components/omnibox/browser/keyword_provider.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/strings/string16.h"
@@ skipping 121 matching lines @@
   DCHECK(model);
   const TemplateURL* template_url = model->GetTemplateURLForKeyword(keyword);
   if (template_url &&
       template_url->SupportsReplacement(model->search_terms_data())) {
     // Adjust cursor position iff it was set before, otherwise leave it as is.
     size_t cursor_position = base::string16::npos;
     // The adjustment assumes that the keyword was stripped from the beginning
     // of the original input.
     if (input->cursor_position() != base::string16::npos &&
         !remaining_input.empty() &&
-        base::EndsWith(input->text(), remaining_input,
-                       base::CompareCase::SENSITIVE)) {
+        base::EndsWith(input->text(), remaining_input, true)) {
       int offset = input->text().length() - input->cursor_position();
       // The cursor should never be past the last character or before the
       // first character.
       DCHECK_GE(offset, 0);
       DCHECK_LE(offset, static_cast<int>(input->text().length()));
       if (offset <= 0) {
         // Normalize the cursor to be exactly after the last character.
         cursor_position = remaining_input.length();
       } else {
         // If somehow the cursor was before the remaining text, set it to 0,
@@ skipping 317 matching lines @@
         ACMatchClassification::NONE, &match->contents_class);
   }
 }
 
 TemplateURLService* KeywordProvider::GetTemplateURLService() const {
   // Make sure the model is loaded. This is cheap and quickly bails out if
   // the model is already loaded.
   model_->Load();
   return model_;
 }