Implement {Start,Stop}CapturingKeyStrokes for Instant.

chrome/browser/ui/gtk/omnibox/omnibox_view_gtk.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_GTK_OMNIBOX_OMNIBOX_VIEW_GTK_H_
 #define CHROME_BROWSER_UI_GTK_OMNIBOX_OMNIBOX_VIEW_GTK_H_
 
 #include <gtk/gtk.h>
 
 #include <algorithm>
@@ skipping 66 matching lines @@
                                         bool update_popup,
                                         bool notify_text_changed) OVERRIDE;
   virtual void SetForcedQuery() OVERRIDE;
   virtual bool IsSelectAll() const OVERRIDE;
   virtual bool DeleteAtEndPressed() OVERRIDE;
   virtual void GetSelectionBounds(string16::size_type* start,
                                   string16::size_type* end) const OVERRIDE;
   virtual void SelectAll(bool reversed) OVERRIDE;
   virtual void UpdatePopup() OVERRIDE;
   virtual void SetFocus() OVERRIDE;
+  virtual void ApplyCaretVisibility() OVERRIDE;
   virtual void OnTemporaryTextMaybeChanged(
       const string16& display_text,
       bool save_original_selection) OVERRIDE;
   virtual bool OnInlineAutocompleteTextMaybeChanged(
       const string16& display_text, size_t user_text_length) OVERRIDE;
   virtual void OnRevertTemporaryText() OVERRIDE;
   virtual void OnBeforePossibleChange() OVERRIDE;
   virtual bool OnAfterPossibleChange() OVERRIDE;
   virtual gfx::NativeView GetNativeView() const OVERRIDE;
   virtual gfx::NativeView GetRelativeWindowForPopup() const OVERRIDE;
@@ skipping 348 matching lines @@
   // The view that is going to be focused next. Only valid while handling
   // "focus-out" events.
   GtkWidget* going_to_focus_;
 
   ui::GtkSignalRegistrar signals_;
 
   DISALLOW_COPY_AND_ASSIGN(OmniboxViewGtk);
 };
 
 #endif  // CHROME_BROWSER_UI_GTK_OMNIBOX_OMNIBOX_VIEW_GTK_H_