Add onfocuschange to the Extended Search API, with associated isFocused attribute.

chrome/browser/ui/omnibox/omnibox_edit_model.h

 // Copyright 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_OMNIBOX_OMNIBOX_EDIT_MODEL_H_
 #define CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_EDIT_MODEL_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 16 matching lines @@
 class OmniboxEditController;
 class OmniboxPopupModel;
 class OmniboxView;
 class Profile;
 
 namespace gfx {
 class Image;
 class Rect;
 }
 
-// Reasons why the Omnibox focus state could change.
-enum OmniboxFocusChangeReason {
-  // Includes any explicit changes to focus. (e.g. user clicking to change
-  // focus, user tabbing to change focus, any explicit calls to SetFocus,
-  // etc.)
-  OMNIBOX_FOCUS_CHANGE_EXPLICIT,
-
-  // Focus changed to restore state from a tab the user switched to.
-  OMNIBOX_FOCUS_CHANGE_TAB_SWITCH,
-
-  // Focus changed because user started typing. This only happens when focus
-  // state is INVISIBLE (and this results in a change to VISIBLE).
-  OMNIBOX_FOCUS_CHANGE_TYPING,
-};
-
 // Reasons why the Omnibox could change into keyword mode.
 // These numeric values are used in UMA logs; do not change them.
 enum EnteredKeywordModeMethod {
   ENTERED_KEYWORD_MODE_VIA_TAB = 0,
   ENTERED_KEYWORD_MODE_VIA_SPACE_AT_END = 1,
   ENTERED_KEYWORD_MODE_VIA_SPACE_IN_MIDDLE = 2,
   ENTERED_KEYWORD_MODE_NUM_ITEMS
 };
 
 class OmniboxEditModel {
@@ skipping 506 matching lines @@
   // an exact keyword match.  If this is true then keyword mode will be
   // triggered automatically if the input is "<keyword> <search string>".  We
   // allow this when CreatedKeywordSearchByInsertingSpaceInMiddle() is true.
   // This has no effect if we're already in keyword mode.
   bool allow_exact_keyword_match_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxEditModel);
 };
 
 #endif  // CHROME_BROWSER_UI_OMNIBOX_OMNIBOX_EDIT_MODEL_H_