Give up focus if the focused view becomes unfocusable

chrome/browser/ui/views/accessibility/accessibility_event_router_views_unittest.cc

 // Copyright (c) 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.
 
 #include <string>
 
 #include "base/message_loop/message_loop.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/accessibility/accessibility_extension_api.h"
@@ skipping 311 matching lines @@
   const char kOldNameASCII[] = "OldName";
   const char kNewNameASCII[] = "NewName";
 
   // Create a toolbar with a button.
   views::View* contents = new ViewWithNameAndRole(
       ASCIIToUTF16(kContentsNameASCII),
       ui::AccessibilityTypes::ROLE_CLIENT);
   ViewWithNameAndRole* child = new ViewWithNameAndRole(
       ASCIIToUTF16(kOldNameASCII),
       ui::AccessibilityTypes::ROLE_PUSHBUTTON);
-  child->set_focusable(true);
+  child->SetFocusable(true);
   contents->AddChildView(child);
 
   // Put the view in a window.
   views::Widget* window = CreateWindowWithContents(contents);
 
   // Set focus to the child view.
   control_event_count_ = 0;
   child->RequestFocus();
 
   // Change the child's name after the focus notification.
@@ skipping 15 matching lines @@
   const char kContentsNameASCII[] = "Contents";
   const char kNameASCII[] = "OldName";
 
   // Create a toolbar with a button.
   views::View* contents = new ViewWithNameAndRole(
       ASCIIToUTF16(kContentsNameASCII),
       ui::AccessibilityTypes::ROLE_CLIENT);
   ViewWithNameAndRole* child = new ViewWithNameAndRole(
       ASCIIToUTF16(kNameASCII),
       ui::AccessibilityTypes::ROLE_PUSHBUTTON);
-  child->set_focusable(true);
+  child->SetFocusable(true);
   contents->AddChildView(child);
 
   // Put the view in a window.
   views::Widget* window = CreateWindowWithContents(contents);
 
   // Set focus to the child view.
   control_event_count_ = 0;
   child->RequestFocus();
 
   // Delete the child!
@@ skipping 126 matching lines @@
 
     AccessibilityEventRouterViews::RecursiveGetMenuItemIndexAndCount(
         menu_container,
         menu->GetMenuItemByID(kTestCases[i].command_id),
         &index,
         &count);
     EXPECT_EQ(kTestCases[i].expected_index, index) << "Case " << i;
     EXPECT_EQ(kTestCases[i].expected_count, count) << "Case " << i;
   }
 }