Give the ChromeVox Panel an extension view type.

chrome/browser/ui/ash/chrome_keyboard_ui.cc

 // Copyright (c) 2013 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/ash/chrome_keyboard_ui.h"
 
 #include <utility>
 
 #include "ash/root_window_controller.h"
 #include "ash/shell.h"
@@ skipping 125 matching lines @@
         extensions::ExtensionRegistry::Get(browser_context());
     extension = registry->enabled_extensions().GetByID(origin.host());
     DCHECK(extension);
   }
 
   MediaCaptureDevicesDispatcher::GetInstance()->ProcessMediaAccessRequest(
       web_contents, request, callback, extension);
 }
 
 void ChromeKeyboardUI::SetupWebContents(content::WebContents* contents) {
-  extensions::SetViewType(contents, extensions::VIEW_TYPE_VIRTUAL_KEYBOARD);
+  extensions::SetViewType(contents, extensions::VIEW_TYPE_COMPONENT);
   extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
       contents);
   Observe(contents);
 }
 
 void ChromeKeyboardUI::SetController(keyboard::KeyboardController* controller) {
   // During KeyboardController destruction, controller can be set to null.
   if (!controller) {
     DCHECK(keyboard_controller());
     keyboard_controller()->RemoveObserver(observer_.get());
@@ skipping 61 matching lines @@
   event_args->Append(input_context.release());
 
   scoped_ptr<extensions::Event> event(new extensions::Event(
       extensions::events::VIRTUAL_KEYBOARD_PRIVATE_ON_TEXT_INPUT_BOX_FOCUSED,
       virtual_keyboard_private::OnTextInputBoxFocused::kEventName,
       std::move(event_args)));
   event->restrict_to_browser_context = browser_context();
   router->DispatchEventToExtension(kVirtualKeyboardExtensionID,
                                    std::move(event));
 }