[cros] Prevent extensions from opening dialogs on Login screen.

chrome/browser/extensions/extension_host.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/extensions/extension_host.h"
 
 #include <list>
 
 #include "base/bind.h"
 #include "base/memory/singleton.h"
@@ skipping 38 matching lines @@
 #include "content/public/browser/web_contents_view.h"
 #include "content/public/browser/web_intents_dispatcher.h"
 #include "grit/browser_resources.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "ui/base/keycodes/keyboard_codes.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/chromeos/login/user_manager.h"
+#endif
+
 using WebKit::WebDragOperation;
 using WebKit::WebDragOperationsMask;
 using content::NativeWebKeyboardEvent;
 using content::OpenURLParams;
 using content::RenderViewHost;
 using content::SiteInstance;
 using content::WebContents;
 
 namespace extensions {
 
@@ skipping 335 matching lines @@
   // TODO(mpcomplete): is this check really necessary?
   if (extension_host_type_ == chrome::VIEW_TYPE_EXTENSION_POPUP ||
       extension_host_type_ == chrome::VIEW_TYPE_EXTENSION_DIALOG ||
       extension_host_type_ == chrome::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE ||
       extension_host_type_ == chrome::VIEW_TYPE_EXTENSION_INFOBAR ||
       extension_host_type_ == chrome::VIEW_TYPE_PANEL) {
     Close();
   }
 }
 
+#if defined(OS_CHROMEOS)
+bool ExtensionHost::ShouldSuppressDialogs() {
+  // Prevent extensions from creating dialogs while user session hasn't
+  // started yet.
+  return !chromeos::UserManager::Get()->IsSessionStarted();
+}
+#endif
+
 void ExtensionHost::OnStartDownload(
     content::WebContents* source, content::DownloadItem* download) {
   // If |source| is in the context of a Browser, show the DownloadShelf on that
   // Browser.
   if (!view() || !view()->browser())
     return;
   static_cast<content::WebContentsDelegate*>(view()->browser())->
     OnStartDownload(source, download);
 }
 
@@ skipping 221 matching lines @@
 void ExtensionHost::RequestMediaAccessPermission(
     content::WebContents* web_contents,
     const content::MediaStreamRequest* request,
     const content::MediaResponseCallback& callback) {
   // For tab capture device, we require the tabCapture permission.
   RequestMediaAccessPermissionHelper::AuthorizeRequest(
       request, callback, extension(), false);
 }
 
 }  // namespace extensions