Revert "Gtk confirm form resubmission dialog." Broke linux views build.

This reverts commit e6ab23c81e56c6b9fbb062bbb090a648e6ebef12.

TBR=beng

Review URL: http://codereview.chromium.org/183006

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@24827 0039d316-1c4b-4281-b951-d872f2087c98

20 files changed, 59 insertions, 179 deletions

diff --git a/chrome/browser/browser.cc b/chrome/browser/browser.cc
index 3486a62..4acd94b 100644
--- a/chrome/browser/browser.cc
+++ b/chrome/browser/browser.cc
@@ -2059,10 +2059,6 @@ void Browser::ShowPageInfo(Profile* profile,
   window()->ShowPageInfo(profile, url, ssl, show_history);
 }
 
-void Browser::ShowRepostFormWarningDialog(TabContents *tab_contents) {
-  window()->ShowRepostFormWarningDialog(tab_contents);
-}
-
 ///////////////////////////////////////////////////////////////////////////////
 // Browser, SelectFileDialog::Listener implementation:
 
diff --git a/chrome/browser/browser.h b/chrome/browser/browser.h
index d0f403a..63ccb0a 100644
--- a/chrome/browser/browser.h
+++ b/chrome/browser/browser.h
@@ -527,7 +527,6 @@ class Browser : public TabStripModelDelegate,
                             const GURL& url,
                             const NavigationEntry::SSLStatus& ssl,
                             bool show_history);
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents);
 
   // Overridden from SelectFileDialog::Listener:
   virtual void FileSelected(const FilePath& path, int index, void* params);
diff --git a/chrome/browser/browser_window.h b/chrome/browser/browser_window.h
index 2532d4b..a1dbe76 100644
--- a/chrome/browser/browser_window.h
+++ b/chrome/browser/browser_window.h
@@ -15,7 +15,6 @@ class FindBar;
 class GURL;
 class HtmlDialogUIDelegate;
 class LocationBar;
-class NavigationController;
 class Profile;
 class StatusBubble;
 class TabContents;
@@ -188,9 +187,6 @@ class BrowserWindow {
   // Shows the New Profile dialog box.
   virtual void ShowNewProfileDialog() = 0;
 
-  // Shows the repost form confirmation dialog box.
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents) = 0;
-
   // Shows the confirmation dialog box warning that the browser is closing with
   // in-progress downloads.
   // This method should call Browser::InProgressDownloadResponse once the user
diff --git a/chrome/browser/cocoa/browser_window_cocoa.h b/chrome/browser/cocoa/browser_window_cocoa.h
index 0eb7693..1635602 100644
--- a/chrome/browser/cocoa/browser_window_cocoa.h
+++ b/chrome/browser/cocoa/browser_window_cocoa.h
@@ -71,7 +71,6 @@ class BrowserWindowCocoa : public BrowserWindow,
   virtual void ShowPasswordManager();
   virtual void ShowSelectProfileDialog();
   virtual void ShowNewProfileDialog();
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents);
   virtual void ConfirmBrowserCloseWithPendingDownloads();
   virtual void ShowHTMLDialog(HtmlDialogUIDelegate* delegate,
                               gfx::NativeWindow parent_window);
diff --git a/chrome/browser/cocoa/browser_window_cocoa.mm b/chrome/browser/cocoa/browser_window_cocoa.mm
index 7d8a202..13ff5bb 100644
--- a/chrome/browser/cocoa/browser_window_cocoa.mm
+++ b/chrome/browser/cocoa/browser_window_cocoa.mm
@@ -246,11 +246,6 @@ void BrowserWindowCocoa::ShowNewProfileDialog() {
   NOTIMPLEMENTED();
 }
 
-void BrowserWindowCocoa::ShowRepostFormWarningDialog(
-    TabContents* tab_contents) {
-  NOTIMPLEMENTED();
-}
-
 // We allow closing the window here since the real quit decision on Mac is made
 // in [AppController quit:].
 void BrowserWindowCocoa::ConfirmBrowserCloseWithPendingDownloads() {
diff --git a/chrome/browser/gtk/browser_window_gtk.cc b/chrome/browser/gtk/browser_window_gtk.cc
index d3df442..9c295ac 100644
--- a/chrome/browser/gtk/browser_window_gtk.cc
+++ b/chrome/browser/gtk/browser_window_gtk.cc
@@ -52,7 +52,6 @@
 #include "chrome/browser/gtk/infobar_container_gtk.h"
 #include "chrome/browser/gtk/keyword_editor_view.h"
 #include "chrome/browser/gtk/nine_box.h"
-#include "chrome/browser/gtk/repost_form_warning_gtk.h"
 #include "chrome/browser/gtk/status_bubble_gtk.h"
 #include "chrome/browser/gtk/tab_contents_container_gtk.h"
 #include "chrome/browser/gtk/tabs/tab_strip_gtk.h"
@@ -1025,11 +1024,6 @@ void BrowserWindowGtk::ShowNewProfileDialog() {
   NOTIMPLEMENTED();
 }
 
-void BrowserWindowGtk::ShowRepostFormWarningDialog(
-    TabContents* tab_contents) {
-  new RepostFormWarningGtk(GetNativeHandle(), &tab_contents->controller());
-}
-
 void BrowserWindowGtk::ShowHTMLDialog(HtmlDialogUIDelegate* delegate,
                                       gfx::NativeWindow parent_window) {
   NOTIMPLEMENTED();
diff --git a/chrome/browser/gtk/browser_window_gtk.h b/chrome/browser/gtk/browser_window_gtk.h
index c21a9ed..d186aa5 100644
--- a/chrome/browser/gtk/browser_window_gtk.h
+++ b/chrome/browser/gtk/browser_window_gtk.h
@@ -102,7 +102,6 @@ class BrowserWindowGtk : public BrowserWindow,
   virtual void ShowPasswordManager();
   virtual void ShowSelectProfileDialog();
   virtual void ShowNewProfileDialog();
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents);
   virtual void ConfirmBrowserCloseWithPendingDownloads();
   virtual void ShowHTMLDialog(HtmlDialogUIDelegate* delegate,
                               gfx::NativeWindow parent_window);
diff --git a/chrome/browser/gtk/repost_form_warning_gtk.cc b/chrome/browser/gtk/repost_form_warning_gtk.cc
deleted file mode 100644
index fab88e6..0000000
--- a/chrome/browser/gtk/repost_form_warning_gtk.cc
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2009 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/gtk/repost_form_warning_gtk.h"
-
-#include "app/l10n_util.h"
-#include "base/message_loop.h"
-#include "chrome/browser/tab_contents/navigation_controller.h"
-#include "chrome/common/gtk_util.h"
-#include "chrome/common/notification_service.h"
-#include "grit/generated_resources.h"
-
-RepostFormWarningGtk::RepostFormWarningGtk(
-    GtkWindow* parent,
-    NavigationController* navigation_controller)
-    : navigation_controller_(navigation_controller) {
-  dialog_ = gtk_message_dialog_new(
-      parent,
-      GTK_DIALOG_MODAL,
-      GTK_MESSAGE_QUESTION,
-      GTK_BUTTONS_NONE,
-      "%s",
-      l10n_util::GetStringUTF8(IDS_HTTP_POST_WARNING).c_str());
-  gtk_window_set_title(GTK_WINDOW(dialog_),
-      l10n_util::GetStringUTF8(IDS_HTTP_POST_WARNING_TITLE).c_str());
-  gtk_util::AddButtonToDialog(dialog_,
-      l10n_util::GetStringUTF8(IDS_HTTP_POST_WARNING_CANCEL).c_str(),
-      GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
-  gtk_util::AddButtonToDialog(dialog_,
-      l10n_util::GetStringUTF8(IDS_HTTP_POST_WARNING_RESEND).c_str(),
-      GTK_STOCK_REFRESH, GTK_RESPONSE_OK);
-  gtk_util::SetWindowIcon(GTK_WINDOW(dialog_));
-
-  g_signal_connect(dialog_, "response", G_CALLBACK(OnResponse), this);
-  g_signal_connect(dialog_, "destroy", G_CALLBACK(OnWindowDestroy), this);
-
-  gtk_widget_show_all(dialog_);
-
-  registrar_.Add(this, NotificationType::LOAD_START,
-                 Source<NavigationController>(navigation_controller_));
-  registrar_.Add(this, NotificationType::TAB_CLOSING,
-                 Source<NavigationController>(navigation_controller_));
-}
-
-RepostFormWarningGtk::~RepostFormWarningGtk() {
-}
-
-void RepostFormWarningGtk::Observe(NotificationType type,
-                                   const NotificationSource& source,
-                                   const NotificationDetails& details) {
-  // Close the dialog if we load a page (because reloading might not apply to
-  // the same page anymore) or if the tab is closed, because then we won't have
-  // a navigation controller anymore.
-  if (dialog_ && navigation_controller_ &&
-      (type == NotificationType::LOAD_START ||
-       type == NotificationType::TAB_CLOSING)) {
-    DCHECK_EQ(Source<NavigationController>(source).ptr(),
-              navigation_controller_);
-    navigation_controller_ = NULL;
-    Destroy();
-  }
-}
-
-void RepostFormWarningGtk::Destroy() {
-  if (dialog_) {
-    gtk_widget_destroy(dialog_);
-    dialog_ = NULL;
-  }
-}
-
-// static
-void RepostFormWarningGtk::OnResponse(GtkWidget* widget, int response,
-                                      RepostFormWarningGtk* dialog) {
-  dialog->Destroy();
-  if (response == GTK_RESPONSE_OK) {
-    if (dialog->navigation_controller_)
-      dialog->navigation_controller_->Reload(false);
-  }
-}
-
-// static
-void RepostFormWarningGtk::OnWindowDestroy(GtkWidget* widget,
-                                           RepostFormWarningGtk* dialog) {
-  MessageLoop::current()->DeleteSoon(FROM_HERE, dialog);
-}
diff --git a/chrome/browser/gtk/repost_form_warning_gtk.h b/chrome/browser/gtk/repost_form_warning_gtk.h
deleted file mode 100644
index 8b6f168..0000000
--- a/chrome/browser/gtk/repost_form_warning_gtk.h
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2009 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 CHROME_BROWSER_GTK_REPOST_FORM_WARNING_GTK_H_
-#define CHROME_BROWSER_GTK_REPOST_FORM_WARNING_GTK_H_
-
-#include <gtk/gtk.h>
-
-#include "chrome/common/notification_registrar.h"
-
-class NavigationController;
-
-class RepostFormWarningGtk : public NotificationObserver {
- public:
-  RepostFormWarningGtk(GtkWindow* parent,
-                       NavigationController* navigation_controller);
-  virtual ~RepostFormWarningGtk();
-
- private:
-  // NotificationObserver implementation.
-  // Watch for a new load or a closed tab and dismiss the dialog if they occur.
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
-
-  // Tell Gtk to destroy the dialog window.  This will only be done once, even
-  // if Destroy is called multiple times (eg, from both OnResponse and Observe.)
-  void Destroy();
-
-  static void OnResponse(GtkWidget* widget,
-                         int response,
-                         RepostFormWarningGtk* dialog);
-  static void OnWindowDestroy(GtkWidget* widget, RepostFormWarningGtk* dialog);
-
-  NotificationRegistrar registrar_;
-
-  // Navigation controller, used to continue the reload.
-  NavigationController* navigation_controller_;
-
-  GtkWidget* dialog_;
-
-  DISALLOW_COPY_AND_ASSIGN(RepostFormWarningGtk);
-};
-
-#endif  // CHROME_BROWSER_GTK_REPOST_FORM_WARNING_GTK_H_
diff --git a/chrome/browser/tab_contents/navigation_controller.cc b/chrome/browser/tab_contents/navigation_controller.cc
index 7f5fa99..3704169 100644
--- a/chrome/browser/tab_contents/navigation_controller.cc
+++ b/chrome/browser/tab_contents/navigation_controller.cc
@@ -16,8 +16,8 @@
 #include "chrome/browser/renderer_host/site_instance.h"
 #include "chrome/browser/sessions/session_types.h"
 #include "chrome/browser/tab_contents/navigation_entry.h"
+#include "chrome/browser/tab_contents/repost_form_warning.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
-#include "chrome/browser/tab_contents/tab_contents_delegate.h"
 #include "chrome/common/navigation_types.h"
 #include "chrome/common/notification_service.h"
 #include "chrome/common/pref_names.h"
@@ -29,6 +29,11 @@
 #include "net/base/net_util.h"
 #include "webkit/glue/webkit_glue.h"
 
+#if defined(OS_WIN)
+#include "chrome/browser/tab_contents/repost_form_warning.h"
+#include "chrome/browser/tab_contents/tab_contents_delegate.h"
+#endif
+
 namespace {
 
 // Invoked when entries have been pruned, or removed. For example, if the
@@ -168,7 +173,7 @@ void NavigationController::Reload(bool check_for_repost) {
     // they really want to do this. If they do, the dialog will call us back
     // with check_for_repost = false.
     tab_contents_->Activate();
-    tab_contents_->delegate()->ShowRepostFormWarningDialog(tab_contents_);
+    RunRepostFormWarningDialog(this);
   } else {
     // Base the navigation on where we are now...
     int current_index = GetCurrentEntryIndex();
diff --git a/chrome/browser/tab_contents/repost_form_warning.h b/chrome/browser/tab_contents/repost_form_warning.h
new file mode 100644
index 0000000..9bbbbaa
--- /dev/null
+++ b/chrome/browser/tab_contents/repost_form_warning.h
@@ -0,0 +1,17 @@
+// Copyright (c) 2009 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 CHROME_BROWSER_TAB_CONTENTS_REPOST_FORM_WARNING_H_
+#define CHROME_BROWSER_TAB_CONTENTS_REPOST_FORM_WARNING_H_
+
+class NavigationController;
+
+// Runs the form repost warning dialog. If the user accepts the action, then
+// it will call Reload on the navigation controller back with check_for_repost
+// set to false.
+//
+// This function is implemented by the platform-specific frontend.
+void RunRepostFormWarningDialog(NavigationController* nav_controller);
+
+#endif  // CHROME_BROWSER_TAB_CONTENTS_REPOST_FORM_WARNING_H_
diff --git a/chrome/browser/tab_contents/tab_contents_delegate.h b/chrome/browser/tab_contents/tab_contents_delegate.h
index 156bb18..3799569 100644
--- a/chrome/browser/tab_contents/tab_contents_delegate.h
+++ b/chrome/browser/tab_contents/tab_contents_delegate.h
@@ -221,9 +221,6 @@ class TabContentsDelegate {
     return false;
   }
 
-  // Shows the repost form confirmation dialog box.
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents) {}
-
  protected:
   ~TabContentsDelegate() {}
 
diff --git a/chrome/browser/views/frame/browser_view.cc b/chrome/browser/views/frame/browser_view.cc
index f9a627b..6dc9adf 100644
--- a/chrome/browser/views/frame/browser_view.cc
+++ b/chrome/browser/views/frame/browser_view.cc
@@ -35,7 +35,6 @@
 #include "chrome/browser/views/frame/browser_frame.h"
 #include "chrome/browser/views/fullscreen_exit_bubble.h"
 #include "chrome/browser/views/infobars/infobar_container.h"
-#include "chrome/browser/views/repost_form_warning_view.h"
 #include "chrome/browser/views/status_bubble_views.h"
 #include "chrome/browser/views/tab_contents/tab_contents_container.h"
 #include "chrome/browser/views/tabs/browser_tab_strip.h"
@@ -930,10 +929,6 @@ void BrowserView::ShowNewProfileDialog() {
   browser::ShowNewProfileDialog();
 }
 
-void BrowserView::ShowRepostFormWarningDialog(TabContents* tab_contents) {
-  new RepostFormWarningView(GetNativeHandle(), &tab_contents->controller());
-}
-
 void BrowserView::ConfirmBrowserCloseWithPendingDownloads() {
   DownloadInProgressConfirmDialogDelegate* delegate =
       new DownloadInProgressConfirmDialogDelegate(browser_.get());
diff --git a/chrome/browser/views/frame/browser_view.h b/chrome/browser/views/frame/browser_view.h
index e59c8aa..d978c51 100644
--- a/chrome/browser/views/frame/browser_view.h
+++ b/chrome/browser/views/frame/browser_view.h
@@ -243,7 +243,6 @@ class BrowserView : public BrowserWindow,
   virtual void ShowPasswordManager();
   virtual void ShowSelectProfileDialog();
   virtual void ShowNewProfileDialog();
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents);
   virtual void ConfirmBrowserCloseWithPendingDownloads();
   virtual void ShowHTMLDialog(HtmlDialogUIDelegate* delegate,
                               gfx::NativeWindow parent_window);
diff --git a/chrome/browser/views/repost_form_warning_view.cc b/chrome/browser/views/repost_form_warning_view.cc
index 074850d7..c9ef167 100644
--- a/chrome/browser/views/repost_form_warning_view.cc
+++ b/chrome/browser/views/repost_form_warning_view.cc
@@ -14,8 +14,14 @@
 #include "views/controls/message_box_view.h"
 #include "views/window/window.h"
 
+// Implementation of function declared in
+// browser/tab_contents/repost_form_warning.h
+void RunRepostFormWarningDialog(NavigationController* navigation_controller) {
+  RepostFormWarningView* dialog =
+      new RepostFormWarningView(navigation_controller);
+}
+
 RepostFormWarningView::RepostFormWarningView(
-    gfx::NativeWindow parent_window,
     NavigationController* navigation_controller)
       : navigation_controller_(navigation_controller),
         message_box_view_(NULL) {
@@ -23,12 +29,19 @@ RepostFormWarningView::RepostFormWarningView(
       MessageBoxFlags::kIsConfirmMessageBox,
       l10n_util::GetString(IDS_HTTP_POST_WARNING),
       L"");
-  views::Window::CreateChromeWindow(parent_window, gfx::Rect(), this)->Show();
+  // TODO(beng): fix this - this dialog box should be shown by a method on the
+  //             Browser.
+  HWND root_hwnd = NULL;
+  if (BrowserList::GetLastActive()) {
+    root_hwnd = reinterpret_cast<HWND>(BrowserList::GetLastActive()->
+        window()->GetNativeHandle());
+  }
+  views::Window::CreateChromeWindow(root_hwnd, gfx::Rect(), this)->Show();
 
   registrar_.Add(this, NotificationType::LOAD_START,
-                 Source<NavigationController>(navigation_controller_));
+                 NotificationService::AllSources());
   registrar_.Add(this, NotificationType::TAB_CLOSING,
-                 Source<NavigationController>(navigation_controller_));
+                 NotificationService::AllSources());
 }
 
 RepostFormWarningView::~RepostFormWarningView() {
@@ -82,9 +95,8 @@ void RepostFormWarningView::Observe(NotificationType type,
   // a navigation controller anymore.
   if (window() && navigation_controller_ &&
       (type == NotificationType::LOAD_START ||
-       type == NotificationType::TAB_CLOSING)) {
-    DCHECK_EQ(Source<NavigationController>(source).ptr(),
-              navigation_controller_);
+       type == NotificationType::TAB_CLOSING) &&
+      Source<NavigationController>(source).ptr() == navigation_controller_) {
     navigation_controller_ = NULL;
     window()->Close();
   }
diff --git a/chrome/browser/views/repost_form_warning_view.h b/chrome/browser/views/repost_form_warning_view.h
index 3c8538b..40db8ac 100644
--- a/chrome/browser/views/repost_form_warning_view.h
+++ b/chrome/browser/views/repost_form_warning_view.h
@@ -5,7 +5,6 @@
 #ifndef CHROME_BROWSER_VIEWS_REPOST_FORM_WARNING_VIEW_H_
 #define CHROME_BROWSER_VIEWS_REPOST_FORM_WARNING_VIEW_H_
 
-#include "base/gfx/native_widget_types.h"
 #include "chrome/common/notification_registrar.h"
 #include "views/window/dialog_delegate.h"
 
@@ -18,9 +17,8 @@ class Window;
 class RepostFormWarningView : public views::DialogDelegate,
                               public NotificationObserver {
  public:
-  // Use BrowserWindow::ShowRepostFormWarningDialog to use.
-  RepostFormWarningView(gfx::NativeWindow parent_window,
-                        NavigationController* navigation_controller);
+  // Use RunRepostFormWarningDialog (declared in repost_form_warning.h) to use.
+  RepostFormWarningView(NavigationController* navigation_controller);
   virtual ~RepostFormWarningView();
 
   // views::DialogDelegate Methods:
diff --git a/chrome/chrome.gyp b/chrome/chrome.gyp
index 0e08bea..62b1aa9 100644
--- a/chrome/chrome.gyp
+++ b/chrome/chrome.gyp
@@ -1302,8 +1302,6 @@
         'browser/gtk/page_info_window_gtk.cc',
         'browser/gtk/process_singleton_dialog.cc',
         'browser/gtk/process_singleton_dialog.h',
-        'browser/gtk/repost_form_warning_gtk.cc',
-        'browser/gtk/repost_form_warning_gtk.h',
         'browser/gtk/sad_tab_gtk.cc',
         'browser/gtk/sad_tab_gtk.h',
         'browser/gtk/slide_animator_gtk.cc',
@@ -1792,6 +1790,7 @@
         'browser/tab_contents/render_view_host_delegate_helper.h',
         'browser/tab_contents/render_view_host_manager.cc',
         'browser/tab_contents/render_view_host_manager.h',
+        'browser/tab_contents/repost_form_warning.h',
         'browser/tab_contents/security_style.h',
         'browser/tab_contents/tab_contents.cc',
         'browser/tab_contents/tab_contents.h',
diff --git a/chrome/common/temp_scaffolding_stubs.cc b/chrome/common/temp_scaffolding_stubs.cc
index 78e4085..162a6ab 100644
--- a/chrome/common/temp_scaffolding_stubs.cc
+++ b/chrome/common/temp_scaffolding_stubs.cc
@@ -210,6 +210,13 @@ bool RLZTracker::RecordProductEvent(Product product, AccessPoint point,
 
 //--------------------------------------------------------------------------
 
+void RunRepostFormWarningDialog(NavigationController*) {
+  // http://code.google.com/p/chromium/issues/detail?id=19761
+  NOTIMPLEMENTED();
+}
+
+//--------------------------------------------------------------------------
+
 MemoryDetails::MemoryDetails() {
   NOTIMPLEMENTED();
 }
diff --git a/chrome/common/temp_scaffolding_stubs.h b/chrome/common/temp_scaffolding_stubs.h
index 0ccab4e..47e0e86 100644
--- a/chrome/common/temp_scaffolding_stubs.h
+++ b/chrome/common/temp_scaffolding_stubs.h
@@ -148,6 +148,12 @@ class DockInfo {
 //---------------------------------------------------------------------------
 // These stubs are for TabContents
 
+class RepostFormWarningDialog {
+ public:
+  static void RunRepostFormWarningDialog(NavigationController*) { }
+  virtual ~RepostFormWarningDialog() { }
+};
+
 class BaseDragSource {
 };
 
diff --git a/chrome/test/test_browser_window.h b/chrome/test/test_browser_window.h
index 45394cf..a7a06db 100644
--- a/chrome/test/test_browser_window.h
+++ b/chrome/test/test_browser_window.h
@@ -69,7 +69,6 @@ class TestBrowserWindow : public BrowserWindow {
   virtual void ShowPasswordManager() {}
   virtual void ShowSelectProfileDialog() {}
   virtual void ShowNewProfileDialog() {}
-  virtual void ShowRepostFormWarningDialog(TabContents* tab_contents) {}
   virtual void ConfirmBrowserCloseWithPendingDownloads() {}
   virtual void ShowHTMLDialog(HtmlDialogUIDelegate* delegate,
                               gfx::NativeWindow parent_window) {}