Instant API: tell page whether the browser is capturing key strokes.

chrome/renderer/searchbox/searchbox.h

Index: chrome/renderer/searchbox/searchbox.h
diff --git a/chrome/renderer/searchbox/searchbox.h b/chrome/renderer/searchbox/searchbox.h
index dad3aaefc4edc07f23d6d854e1bb926341575ba8..6ee646d3549ec46014e9a4f93e1d83f00ba0cd06 100644
--- a/chrome/renderer/searchbox/searchbox.h
+++ b/chrome/renderer/searchbox/searchbox.h
@@ -44,6 +44,7 @@ class SearchBox : public content::RenderViewObserver,
   size_t selection_start() const { return selection_start_; }
   size_t selection_end() const { return selection_end_; }
   int results_base() const { return results_base_; }
+  bool capturing_key_strokes() const { return capturing_key_strokes_; }
   const chrome::search::Mode& mode() const { return mode_; }
 
   gfx::Rect GetRect();
@@ -69,6 +70,8 @@ class SearchBox : public content::RenderViewObserver,
   void OnAutocompleteResults(
       const std::vector<InstantAutocompleteResult>& results);
   void OnUpOrDownKeyPressed(int count);
+  void OnStartedCapturingKeyStrokes();
+  void OnStoppedCapturingKeyStrokes();
   void OnModeChanged(const chrome::search::Mode& mode);
   void OnThemeChanged(const ThemeBackgroundInfo& theme_info);
   void OnThemeAreaHeightChanged(int height);
@@ -85,6 +88,7 @@ class SearchBox : public content::RenderViewObserver,
   std::vector<InstantAutocompleteResult> autocomplete_results_;
   size_t last_results_base_;
   std::vector<InstantAutocompleteResult> last_autocomplete_results_;
+  bool capturing_key_strokes_;
   chrome::search::Mode mode_;
   ThemeBackgroundInfo theme_info_;
   int theme_area_height_;