Enable webview tag in webui

chrome/browser/ui/webui/signin/inline_login_ui.cc

 // Copyright 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/webui/signin/inline_login_ui.h"
 
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_tab_helper.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/grit/chromium_strings.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/web_ui.h"
 #include "content/public/browser/web_ui_data_source.h"
 #include "grit/browser_resources.h"
 #if defined(OS_CHROMEOS)
 #include "chrome/browser/ui/webui/chromeos/login/inline_login_handler_chromeos.h"
 #else
 #include "chrome/browser/ui/webui/signin/inline_login_handler_impl.h"
 #endif
 
 namespace {
 
 content::WebUIDataSource* CreateWebUIDataSource() {
   content::WebUIDataSource* source =
         content::WebUIDataSource::Create(chrome::kChromeUIChromeSigninHost);
   source->OverrideContentSecurityPolicyFrameSrc("frame-src chrome-extension:;");
+  source->OverrideContentSecurityPolicyObjectSrc("object-src *;");
   source->SetUseJsonJSFormatV2();
   source->SetJsonPath("strings.js");
 
   source->SetDefaultResource(IDR_INLINE_LOGIN_HTML);
   source->AddResourcePath("inline_login.css", IDR_INLINE_LOGIN_CSS);
   source->AddResourcePath("inline_login.js", IDR_INLINE_LOGIN_JS);
 
   source->AddLocalizedString("title", IDS_CHROME_SIGNIN_TITLE);
   return source;
 }
@@ skipping 45 matching lines @@
   std::set<content::RenderFrameHost*> frame_set;
   web_contents->ForEachFrame(
       base::Bind(&AddToSetIfIsAuthIframe, &frame_set,
                  parent_origin, parent_frame_name));
   DCHECK_GE(1U, frame_set.size());
   if (!frame_set.empty())
     return *frame_set.begin();
 
   return NULL;
 }