Give the ChromeVox Panel an extension view type.

chrome/browser/chromeos/accessibility/chromevox_panel.cc

 // Copyright 2015 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/shelf/shelf_layout_manager.h"
 #include "ash/shell.h"
 #include "ash/shell_window_ids.h"
 #include "base/macros.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
 #include "chrome/browser/chromeos/accessibility/chromevox_panel.h"
+#include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/common/extensions/extension_constants.h"
 #include "content/public/browser/web_contents.h"
+#include "extensions/browser/view_type_utils.h"
 #include "ui/chromeos/accessibility_types.h"
 #include "ui/views/controls/webview/webview.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
 #include "ui/wm/core/shadow_types.h"
 #include "ui/wm/core/window_animations.h"
 
 namespace {
 
 const int kPanelHeight = 35;
@@ skipping 34 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(ChromeVoxPanelWebContentsObserver);
 };
 
 ChromeVoxPanel::ChromeVoxPanel(content::BrowserContext* browser_context)
     : widget_(nullptr), web_view_(nullptr), fullscreen_(false) {
   std::string url("chrome-extension://");
   url += extension_misc::kChromeVoxExtensionId;
   url += kChromeVoxPanelRelativeUrl;
 
   views::WebView* web_view = new views::WebView(browser_context);
+  content::WebContents* contents = web_view->GetWebContents();
   web_contents_observer_.reset(
-      new ChromeVoxPanelWebContentsObserver(web_view->GetWebContents(), this));
+      new ChromeVoxPanelWebContentsObserver(contents, this));
+  extensions::SetViewType(contents, extensions::VIEW_TYPE_COMPONENT);
+  extensions::ChromeExtensionWebContentsObserver::CreateForWebContents(
+      contents);
   web_view->LoadInitialURL(GURL(url));
   web_view_ = web_view;
 
   widget_ = new views::Widget();
   views::Widget::InitParams params(
       views::Widget::InitParams::TYPE_WINDOW_FRAMELESS);
   aura::Window* root_window = ash::Shell::GetPrimaryRootWindow();
   params.parent = ash::Shell::GetContainer(
       root_window, ash::kShellWindowId_SettingBubbleContainer);
   params.delegate = this;
@@ skipping 59 matching lines @@
                                              uint32_t changed_metrics) {
   UpdateWidgetBounds();
 }
 
 void ChromeVoxPanel::UpdateWidgetBounds() {
   gfx::Rect bounds(GetRootWindow()->bounds().size());
   if (!fullscreen_)
     bounds.set_height(kPanelHeight);
   widget_->SetBounds(bounds);
 }