Give up focus if the focused view becomes unfocusable

ash/focus_cycler_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 "ash/focus_cycler.h"
 
 #include "ash/launcher/launcher.h"
 #include "ash/root_window_controller.h"
 #include "ash/shelf/shelf_widget.h"
 #include "ash/shell.h"
@@ skipping 297 matching lines @@
   browser_widget->Show();
 
   aura::Window* browser_window = browser_widget->GetNativeView();
 
   views::View* root_view = browser_widget->GetRootView();
 
   views::AccessiblePaneView* pane1 = new views::AccessiblePaneView();
   root_view->AddChildView(pane1);
 
   views::View* view1 = new views::View;
-  view1->set_focusable(true);
+  view1->SetFocusable(true);
   pane1->AddChildView(view1);
 
   views::View* view2 = new views::View;
-  view2->set_focusable(true);
+  view2->SetFocusable(true);
   pane1->AddChildView(view2);
 
   views::AccessiblePaneView* pane2 = new views::AccessiblePaneView();
   root_view->AddChildView(pane2);
 
   views::View* view3 = new views::View;
-  view3->set_focusable(true);
+  view3->SetFocusable(true);
   pane2->AddChildView(view3);
 
   views::View* view4 = new views::View;
-  view4->set_focusable(true);
+  view4->SetFocusable(true);
   pane2->AddChildView(view4);
 
   std::vector<views::View*> panes;
   panes.push_back(pane1);
   panes.push_back(pane2);
 
   test_widget_delegate->SetAccessiblePanes(panes);
 
   views::FocusManager* focus_manager = browser_widget->GetFocusManager();
 
@@ skipping 49 matching lines @@
   // should do the same thing.
   focus_cycler()->RotateFocus(FocusCycler::BACKWARD);
   EXPECT_TRUE(shelf_widget()->IsActive());
   event_generator.PressKey(ui::VKEY_ESCAPE, 0);
   EXPECT_TRUE(wm::IsActiveWindow(browser_window));
   EXPECT_EQ(focus_manager->GetFocusedView(), view1);
 }
 
 }  // namespace test
 }  // namespace ash