Remove showModalDialog (Chrome side)

content/common/view_messages.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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
@@ skipping 1047 matching lines @@
                     bool /* opened_by_user_gesture */)
 
 IPC_MESSAGE_ROUTED2(ViewHostMsg_ShowWidget,
                     int /* route_id */,
                     gfx::Rect /* initial_rect */)
 
 // Message to show a full screen widget.
 IPC_MESSAGE_ROUTED1(ViewHostMsg_ShowFullscreenWidget,
                     int /* route_id */)
 
-// This message is sent after ViewHostMsg_ShowView to cause the RenderView
-// to run in a modal fashion until it is closed.
-IPC_SYNC_MESSAGE_ROUTED1_0(ViewHostMsg_RunModal,
-                           int /* opener_id */)
-
 // Indicates the renderer is ready in response to a ViewMsg_New or
 // a ViewMsg_CreatingNew_ACK.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_RenderViewReady)
 
 // Sent by the renderer process to request that the browser close the view.
 // This corresponds to the window.close() API, and the browser may ignore
 // this message.  Otherwise, the browser will generates a ViewMsg_Close
 // message to close the view.
 IPC_MESSAGE_ROUTED0(ViewHostMsg_Close)
 
@@ skipping 571 matching lines @@
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             base::string16 /* characters */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.