Give up focus if the focused view becomes unfocusable

chrome/browser/ui/views/extensions/extension_view_views.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 "chrome/browser/ui/views/extensions/extension_view_views.h"
 
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/ui/views/extensions/extension_popup.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_view_host.h"
@@ skipping 11 matching lines @@
 ExtensionViewViews::ExtensionViewViews(extensions::ExtensionHost* host,
                                        Browser* browser)
     : host_(host),
       browser_(browser),
       initialized_(false),
       container_(NULL),
       is_clipped_(false) {
   // This view needs to be focusable so it can act as the focused view for the
   // focus manager. This is required to have SkipDefaultKeyEventProcessing
   // called so the tab key events are forwarded to the renderer.
-  set_focusable(true);
+  SetFocusable(true);
 }
 
 ExtensionViewViews::~ExtensionViewViews() {
   if (parent())
     parent()->RemoveChildView(this);
   CleanUp();
 }
 
 const extensions::Extension* ExtensionViewViews::extension() const {
   return host_->extension();
@@ skipping 125 matching lines @@
 
   if (container_)
     container_->OnViewWasResized();
 }
 
 void ExtensionViewViews::HandleKeyboardEvent(
     const content::NativeWebKeyboardEvent& event) {
   unhandled_keyboard_event_handler_.HandleKeyboardEvent(event,
                                                         GetFocusManager());
 }