Implement {Start,Stop}CapturingKeyStrokes for Instant.

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

Index: chrome/browser/ui/views/omnibox/omnibox_view_views.h
diff --git a/chrome/browser/ui/views/omnibox/omnibox_view_views.h b/chrome/browser/ui/views/omnibox/omnibox_view_views.h
index 9a88038c27b6321ea328cb6e1c19d142065c75d8..3db70fc01097324f6e1992020843d8ac9099c6c7 100644
--- a/chrome/browser/ui/views/omnibox/omnibox_view_views.h
+++ b/chrome/browser/ui/views/omnibox/omnibox_view_views.h
@@ -108,6 +108,7 @@ class OmniboxViewViews
   virtual void SelectAll(bool reversed) OVERRIDE;
   virtual void UpdatePopup() OVERRIDE;
   virtual void SetFocus() OVERRIDE;
+  virtual void SetInvisibleFocus() OVERRIDE;
   virtual void OnTemporaryTextMaybeChanged(
       const string16& display_text,
       bool save_original_selection) OVERRIDE;
@@ -180,6 +181,9 @@ class OmniboxViewViews
   // that after invoking this OnAfterPossibleChange() is invoked.
   void OnPaste();
 
+  // Update focus visibility.
+  void SetFocusVisibility(bool focus_is_visible);
+
   views::Textfield* textfield_;
 
   // When true, the location bar view is read only and also is has a slightly