Implement <appview> skeleton.

chrome/browser/guest_view/guest_view_base.cc

 // Copyright 2014 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/guest_view/guest_view_base.h"
 
+#include "base/command_line.h"
 #include "base/lazy_instance.h"
 #include "base/strings/utf_string_conversions.h"
+#include "chrome/browser/guest_view/app_view/app_view_guest.h"
 #include "chrome/browser/guest_view/guest_view_constants.h"
 #include "chrome/browser/guest_view/guest_view_manager.h"
 #include "chrome/browser/guest_view/web_view/web_view_guest.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_switches.h"
 #include "chrome/common/content_settings.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/common/url_constants.h"
 #include "extensions/browser/event_router.h"
 #include "third_party/WebKit/public/web/WebInputEvent.h"
 
 using content::WebContents;
@@ skipping 94 matching lines @@
 
   // Give the derived class an opportunity to perform additional initialization.
   DidInitialize();
 }
 
 // static
 GuestViewBase* GuestViewBase::Create(
     content::BrowserContext* browser_context,
     int guest_instance_id,
     const std::string& view_type) {
-  if (view_type == "webview") {
+  if (view_type == WebViewGuest::Type) {
     return new WebViewGuest(browser_context, guest_instance_id);
+  } else if (view_type == AppViewGuest::Type) {
+    if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
+        switches::kEnableAppView)) {
+      return NULL;
+    }
+    return new AppViewGuest(browser_context, guest_instance_id);
   }
   NOTREACHED();
   return NULL;
 }
 
 // static
 GuestViewBase* GuestViewBase::FromWebContents(WebContents* web_contents) {
   WebContentsGuestViewMap* guest_map = webcontents_guestview_map.Pointer();
   WebContentsGuestViewMap::iterator it = guest_map->find(web_contents);
   return it == guest_map->end() ? NULL : it->second;
@@ skipping 200 matching lines @@
     content::WebContents* guest_web_contents) {
   if (!guest_web_contents) {
     callback.Run(NULL);
     return;
   }
   InitWithWebContents(embedder_extension_id,
                       embedder_render_process_id,
                       guest_web_contents);
   callback.Run(guest_web_contents);
 }