Implement {Start,Stop}CapturingKeyStrokes for Instant.

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 195 matching lines @@
 
   // Returns the current autocomplete result.  This logic should in the future
   // live in AutocompleteController but resides here for now.  This method is
   // used by AutomationProvider::AutocompleteEditGetMatches.
   const AutocompleteResult& result() const;
 
   // Called when the view is gaining focus.  |control_down| is whether the
   // control key is down (at the time we're gaining focus).
   void OnSetFocus(bool control_down);
 
+  // Called when we switch between using visible and invisible focus for the
+  // omnibox. NOTE: this does NOT convey whether the view currently has focus;
+  // only whether the focus will be visible when it does gain focus.
+  void OnFocusVisibilityChange(bool visible_focus);

[Mathieu, 2012/11/20 23:26:01]

Again, *Changed may be better.

[samarth, 2012/11/21 00:40:15]

Done.

+
   // Sent before |OnKillFocus| and before the popup is closed.
   void OnWillKillFocus(gfx::NativeView view_gaining_focus);
 
   // Called when the view is losing focus.  Resets some state.
   void OnKillFocus();
 
   // Called when the user presses the escape key.  Decides what, if anything, to
   // revert about any current edits.  Returns whether the key was handled.
   bool OnEscapeKeyPressed();
 
@@ skipping 171 matching lines @@
 
   OmniboxView* view_;
 
   OmniboxPopupModel* popup_;
 
   OmniboxEditController* controller_;
 
   // Whether the edit has focus.
   bool has_focus_;
 
+  // Will the focus be visible?
+  bool focus_is_visible_;
+
   // The URL of the currently displayed page.
   string16 permanent_text_;
 
   // This flag is true when the user has modified the contents of the edit, but
   // not yet accepted them.  We use this to determine when we need to save
   // state (on switching tabs) and whether changes to the page URL should be
   // immediately displayed.
   // This flag will be true in a superset of the cases where the popup is open.
   bool user_input_in_progress_;
 
@@ skipping 87 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_