Centralize command line checks for kEnableStreamlinedHostedApps.

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.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/browser/ui/views/frame/browser_non_client_frame_view_ash.h"
 
 #include <algorithm>
 
-#include "ash/ash_switches.h"
 #include "ash/frame/caption_buttons/frame_caption_button.h"
 #include "ash/frame/caption_buttons/frame_caption_button_container_view.h"
 #include "ash/frame/default_header_painter.h"
 #include "ash/frame/frame_border_hit_test_controller.h"
 #include "ash/frame/header_painter_util.h"
 #include "ash/shell.h"
-#include "base/command_line.h"
 #include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/extensions/extension_util.h"
 #include "chrome/browser/themes/theme_properties.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/views/frame/browser_frame.h"
 #include "chrome/browser/ui/views/frame/browser_header_painter_ash.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
 #include "chrome/browser/ui/views/frame/immersive_mode_controller.h"
 #include "chrome/browser/ui/views/profiles/avatar_label.h"
 #include "chrome/browser/ui/views/profiles/avatar_menu_button.h"
 #include "chrome/browser/ui/views/tab_icon_view.h"
 #include "chrome/browser/ui/views/tabs/tab_strip.h"
-#include "chrome/common/chrome_switches.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/ash_resources.h"
 #include "grit/theme_resources.h"
 #include "ui/accessibility/ax_view_state.h"
 #include "ui/aura/client/aura_constants.h"
 #include "ui/aura/window.h"
 #include "ui/base/hit_test.h"
 #include "ui/base/layout.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/theme_provider.h"
@@ skipping 451 matching lines @@
 bool BrowserNonClientFrameViewAsh::UsePackagedAppHeaderStyle() const {
   // Use the packaged app style for apps that aren't using the newer WebApp
   // style.
   return browser_view()->browser()->is_app() && !UseWebAppHeaderStyle();
 }
 
 bool BrowserNonClientFrameViewAsh::UseWebAppHeaderStyle() const {
   // Use of the experimental WebApp header style is guarded with the
   // streamlined hosted app style.
   return browser_view()->browser()->is_app() &&
-         CommandLine::ForCurrentProcess()->HasSwitch(
-             switches::kEnableStreamlinedHostedApps);
+         extensions::util::IsStreamlinedHostedAppsEnabled();
 }
 
 void BrowserNonClientFrameViewAsh::LayoutAvatar() {
   DCHECK(avatar_button());
 #if !defined(OS_CHROMEOS)
   // ChromeOS shows avatar on V1 app.
   DCHECK(browser_view()->IsTabStripVisible());
 #endif
   gfx::ImageSkia incognito_icon = browser_view()->GetOTRAvatarIcon();
 
@@ skipping 120 matching lines @@
   canvas->FillRect(gfx::Rect(0, caption_button_container_->bounds().bottom(),
                              width(), kClientEdgeThickness),
                    ThemeProperties::GetDefaultColor(
                        ThemeProperties::COLOR_TOOLBAR_SEPARATOR));
 }
 
 void BrowserNonClientFrameViewAsh::UpdateBackButtonState(bool enabled) {
   web_app_back_button_->SetState(enabled ? views::Button::STATE_NORMAL
                                          : views::Button::STATE_DISABLED);
 }