keyboard: Update the visibility after tab-switch.

chrome/test/ui_test_utils.h

 // Copyright (c) 2010 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_TEST_UI_TEST_UTILS_H_
 #define CHROME_TEST_UI_TEST_UTILS_H_
 #pragma once
 
 #include <map>
 #include <queue>
@@ skipping 181 matching lines @@
 // Creates an observer that waits for |download_manager| to report that it
 // has a total of |count| downloads that have been handles
 void WaitForDownloadCount(DownloadManager* download_manager, size_t count);
 
 // Blocks until an application modal dialog is showns and returns it.
 AppModalDialog* WaitForAppModalDialog();
 
 // Causes the specified tab to crash. Blocks until it is crashed.
 void CrashTab(TabContents* tab);
 
-// Waits for the focus to change in the specified RenderViewHost.
-void WaitForFocusChange(RenderViewHost* rvh);
+// Waits for the focus to change in the specified tab.
+void WaitForFocusChange(TabContents* tab_contents);
 
 // Waits for the renderer to return focus to the browser (happens through tab
 // traversal).
 void WaitForFocusInBrowser(Browser* browser);
 
 // Performs a find in the page of the specified tab. Returns the number of
 // matches found.  |ordinal| is an optional parameter which is set to the index
 // of the current match.
 int FindInPage(TabContents* tab,
                const string16& search_string,
@@ skipping 340 matching lines @@
 
 // Takes a snapshot of the entire page, according to the width and height
 // properties of the DOM's document. Returns true on success. DOMAutomation
 // must be enabled.
 bool TakeEntirePageSnapshot(RenderViewHost* rvh,
                             SkBitmap* bitmap) WARN_UNUSED_RESULT;
 
 }  // namespace ui_test_utils
 
 #endif  // CHROME_TEST_UI_TEST_UTILS_H_