Remove code to defer app window appearance until first paint.

chrome/browser/extensions/api/tabs/ash_panel_contents.cc

 // Copyright 2013 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/extensions/api/tabs/ash_panel_contents.h"
 
 #include "base/values.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/api/tabs/tabs_constants.h"
 #include "chrome/browser/extensions/api/tabs/tabs_windows_api.h"
@@ skipping 53 matching lines @@
       url_, content::Referrer(), ui::PAGE_TRANSITION_LINK,
       std::string());
 }
 
 void AshPanelContents::NativeWindowChanged(NativeAppWindow* native_app_window) {
 }
 
 void AshPanelContents::NativeWindowClosed() {
 }
 
-void AshPanelContents::DispatchWindowShownForTests() const {
-}
-
 void AshPanelContents::OnWindowReady() {}
 
 content::WebContents* AshPanelContents::GetWebContents() const {
   return web_contents_.get();
 }
 
 extensions::WindowController* AshPanelContents::GetWindowController() const {
   return nullptr;
 }
 
 void AshPanelContents::FaviconUpdated() {
   gfx::Image new_image = gfx::Image::CreateFrom1xBitmap(
       launcher_favicon_loader_->GetFavicon());
   host_->UpdateAppIcon(new_image);
 }