Remove showModalDialog (Chrome side)

chrome/renderer/chrome_render_process_observer.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/renderer/chrome_render_process_observer.h"
 
 #include <limits>
 #include <vector>
 
 #include "base/allocator/allocator_extension.h"
@@ skipping 201 matching lines @@
     ChromeContentRendererClient* client)
     : client_(client),
       webkit_initialized_(false) {
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
 
 #if defined(ENABLE_AUTOFILL_DIALOG)
   WebRuntimeFeatures::enableRequestAutocomplete(true);
 #endif
 
-  if (command_line.HasSwitch(switches::kEnableShowModalDialog))
-    WebRuntimeFeatures::enableShowModalDialog(true);
-
   if (command_line.HasSwitch(switches::kDisableJavaScriptHarmonyShipping)) {
     std::string flag("--noharmony-shipping");
     v8::V8::SetFlagsFromString(flag.c_str(), static_cast<int>(flag.size()));
   }
 
   if (command_line.HasSwitch(switches::kJavaScriptHarmony)) {
     std::string flag("--harmony");
     v8::V8::SetFlagsFromString(flag.c_str(), static_cast<int>(flag.size()));
   }
 
@@ skipping 99 matching lines @@
 ChromeRenderProcessObserver::content_setting_rules() const {
   return &content_setting_rules_;
 }
 
 void ChromeRenderProcessObserver::OnFieldTrialGroupFinalized(
     const std::string& trial_name,
     const std::string& group_name) {
   content::RenderThread::Get()->Send(
       new ChromeViewHostMsg_FieldTrialActivated(trial_name));
 }