Revert 252883 "Remove tests and code for showModalDialog"

content/renderer/render_view_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 #define CONTENT_RENDERER_RENDER_VIEW_IMPL_H_
 
 #include <deque>
 #include <map>
 #include <set>
@@ skipping 351 matching lines @@
   // IPC::Listener implementation ----------------------------------------------
 
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
   // blink::WebWidgetClient implementation ------------------------------------
 
   // Most methods are handled by RenderWidget.
   virtual void didFocus();
   virtual void didBlur();
   virtual void show(blink::WebNavigationPolicy policy);
+  virtual void runModal();
   virtual bool enterFullScreen();
   virtual void exitFullScreen();
   virtual bool requestPointerLock();
   virtual void requestPointerUnlock();
   virtual bool isPointerLocked();
   // FIXME: To be removed as soon as chromium and blink side changes land
   // didActivateCompositor with parameters is still kept in order to land
   // these changes s-chromium - https://codereview.chromium.org/137893025/.
   // s-blink - https://codereview.chromium.org/138523003/
   virtual void didActivateCompositor(int input_handler_identifier);
@@ skipping 1049 matching lines @@
   // use the Observer interface to filter IPC messages and receive frame change
   // notifications.
   // ---------------------------------------------------------------------------
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_VIEW_IMPL_H_