Remove deprecated window.showModalDialog()

Source/core/page/Chrome.cpp

Index: Source/core/page/Chrome.cpp
diff --git a/Source/core/page/Chrome.cpp b/Source/core/page/Chrome.cpp
index 2f05ab2f92af49f7716677bf8a0eb7bc02ec353d..3abc6bec2d8816275056494411edf223deec5198 100644
--- a/Source/core/page/Chrome.cpp
+++ b/Source/core/page/Chrome.cpp
@@ -135,11 +135,6 @@ void Chrome::show(NavigationPolicy policy) const
     m_client->show(policy);
 }
 
-bool Chrome::canRunModal() const
-{
-    return m_client->canRunModal();
-}
-
 static bool canRunModalIfDuringPageDismissal(Page* page, ChromeClient::DialogType dialog, const String& message)
 {
     for (Frame* frame = page->mainFrame(); frame; frame = frame->tree().traverseNext()) {
@@ -150,21 +145,6 @@ static bool canRunModalIfDuringPageDismissal(Page* page, ChromeClient::DialogTyp
     return true;
 }
 
-bool Chrome::canRunModalNow() const
-{
-    return canRunModal() && canRunModalIfDuringPageDismissal(m_page, ChromeClient::HTMLDialog, String());
-}
-
-void Chrome::runModal() const
-{
-    // Defer callbacks in all the other pages, so we don't try to run JavaScript
-    // in a way that could interact with this view.
-    ScopedPageLoadDeferrer deferrer(m_page);
-
-    TimerBase::fireTimersInNestedEventLoop();
-    m_client->runModal();
-}
-
 void Chrome::setWindowFeatures(const WindowFeatures& features) const
 {
     m_client->setToolbarsVisible(features.toolBarVisible || features.locationBarVisible);