[omnibox] Break out SetCaretPos() method and enhance browser test

chrome/browser/ui/views/omnibox/omnibox_view_views.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_VIEW_VIEWS_H_
 #define CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_VIEW_VIEWS_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 116 matching lines @@
   bool HandleEarlyTabActions(const ui::KeyEvent& event);
 
   // Updates |security_level_| based on the toolbar model's current value.
   void UpdateSecurityLevel();
 
   // OmniboxView:
   void SetWindowTextAndCaretPos(const base::string16& text,
                                 size_t caret_pos,
                                 bool update_popup,
                                 bool notify_text_changed) override;
+  void SetCaretPos(size_t caret_pos) override;
   bool IsSelectAll() const override;
   bool DeleteAtEndPressed() override;
   void UpdatePopup() override;
   void ApplyCaretVisibility() override;
   void OnTemporaryTextMaybeChanged(const base::string16& display_text,
                                    bool save_original_selection,
                                    bool notify_text_changed) override;
   bool OnInlineAutocompleteTextMaybeChanged(const base::string16& display_text,
                                             size_t user_text_length) override;
   void OnInlineAutocompleteTextCleared() override;
@@ skipping 97 matching lines @@
   bool select_all_on_gesture_tap_;
 
   // The time of the first character insert operation that has not yet been
   // painted. Used to measure omnibox responsiveness with a histogram.
   base::TimeTicks insert_char_time_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxViewViews);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_OMNIBOX_OMNIBOX_VIEW_VIEWS_H_