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

chrome/browser/instant/instant_loader.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_INSTANT_INSTANT_LOADER_H_
 #define CHROME_BROWSER_INSTANT_INSTANT_LOADER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 66 matching lines @@
   // Tells the preview page about the current theme background.
   void SendThemeBackgroundInfo(const ThemeBackgroundInfo& theme_info);
 
   // Tells the preview page about the current theme area height.
   void SendThemeAreaHeight(int height);
 
   // Tells the preview page that the user pressed the up or down key. |count|
   // is a repeat count, negative for moving up, positive for moving down.
   void OnUpOrDownKeyPressed(int count);
 
+  // Tells the preview page that the browser has started capturing user key
+  // strokes.
+  void OnStartedCapturingKeyStrokes();
+
+  // Tells the preview page that the browser has stopped capturing user key
+  // strokes.
+  void OnStoppedCapturingKeyStrokes();
+
   // Tells the preview page that the active tab's search mode has changed.
   void SearchModeChanged(const chrome::search::Mode& mode);
 
   // Called by the history tab helper with the information that it would have
   // added to the history service had this web contents not been used for
   // Instant.
   void DidNavigate(const history::HistoryAddPageArgs& add_page_args);
 
   // Releases the preview TabContents passing ownership to the caller. This
   // should be called when the preview is committed. Notifies the page but not
@@ skipping 61 matching lines @@
   // Used to get notifications about renderers coming and going.
   content::NotificationRegistrar registrar_;
 
   // See comments on the getter above.
   history::HistoryAddPageArgs last_navigation_;
 
   DISALLOW_COPY_AND_ASSIGN(InstantLoader);
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_LOADER_H_