Fix case sensitivity in views::PrefixSelector

ui/views/controls/prefix_selector.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 "ui/views/controls/prefix_selector.h"
 
 #include "base/i18n/case_conversion.h"
 #include "ui/base/ime/text_input_type.h"
 #include "ui/gfx/range/range.h"
 #include "ui/views/controls/prefix_delegate.h"
@@ skipping 155 matching lines @@
   } else {
     current_text_ = text;
     if (prefix_delegate_->GetSelectedRow() >= 0)
       row = (row + 1) % row_count;
   }
   time_of_last_key_ = now;
 
   const int start_row = row;
   const base::string16 lower_text(base::i18n::ToLower(current_text_));
   do {
-    if (TextAtRowMatchesText(row, current_text_)) {
+    if (TextAtRowMatchesText(row, lower_text)) {
       prefix_delegate_->SetSelectedRow(row);
       return;
     }
     row = (row + 1) % row_count;
   } while (row != start_row);
 }
 
 bool PrefixSelector::TextAtRowMatchesText(int row,
                                           const base::string16& lower_text) {
   const base::string16 model_text(
       base::i18n::ToLower(prefix_delegate_->GetTextForRow(row)));
   return (model_text.size() >= lower_text.size()) &&
       (model_text.compare(0, lower_text.size(), lower_text) == 0);
 }
 
 void PrefixSelector::ClearText() {
   current_text_.clear();
   time_of_last_key_ = base::TimeTicks();
 }
 
 }  // namespace views