Improve omnibox accessibility on Windows.

chrome/browser/autocomplete/autocomplete_edit_unittest.cc

 // Copyright (c) 2011 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/utf_string_conversions.h"
 #include "chrome/browser/autocomplete/autocomplete_edit.h"
 #include "chrome/browser/ui/omnibox/omnibox_view.h"
 #include "chrome/test/base/testing_browser_process.h"
 #include "chrome/test/base/testing_profile.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 19 matching lines @@
   virtual int GetIcon() const { return 0; }
   virtual void SetUserText(const string16& text) {}
   virtual void SetUserText(const string16& text,
                            const string16& display_text,
                            bool update_popup) {}
   virtual void SetWindowTextAndCaretPos(const string16& text,
                                         size_t caret_pos) {}
   virtual void SetForcedQuery() {}
   virtual bool IsSelectAll() { return false; }
   virtual bool DeleteAtEndPressed() { return false; }
-  virtual void GetSelectionBounds(size_t* start, size_t* end) {}
+  virtual void GetSelectionBounds(size_t* start, size_t* end) const {}
   virtual void SelectAll(bool reversed) {}
   virtual void RevertAll() {}
   virtual void UpdatePopup() {}
   virtual void ClosePopup() {}
   virtual void SetFocus() {}
   virtual void OnTemporaryTextMaybeChanged(const string16& display_text,
                                            bool save_original_selection) {}
   virtual bool OnInlineAutocompleteTextMaybeChanged(
       const string16& display_text, size_t user_text_length) {
     return false;
@@ skipping 105 matching lines @@
     GURL url;
     bool write_url;
     model.AdjustTextForCopy(input[i].sel_start, input[i].is_all_selected,
                             &result, &url, &write_url);
     EXPECT_EQ(ASCIIToUTF16(input[i].expected_output), result) << "@: " << i;
     EXPECT_EQ(input[i].write_url, write_url) << " @" << i;
     if (write_url)
       EXPECT_EQ(input[i].expected_url, url.spec()) << " @" << i;
   }
 }