[Media Router] Add experiment control logic.

chrome/browser/ui/browser_commands.cc

 // Copyright 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/browser_commands.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browsing_data/browsing_data_helper.h"
 #include "chrome/browser/browsing_data/browsing_data_remover.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/dom_distiller/tab_utils.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
-#include "chrome/browser/media/router/media_router_dialog_controller.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/prefs/incognito_mode_prefs.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/search/search.h"
 #include "chrome/browser/sessions/session_service_factory.h"
 #include "chrome/browser/sessions/tab_restore_service_factory.h"
 #include "chrome/browser/translate/chrome_translate_client.h"
 #include "chrome/browser/ui/accelerator_utils.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
 #include "chrome/browser/ui/bookmarks/bookmark_utils_desktop.h"
@@ skipping 73 matching lines @@
 #include "chrome/browser/printing/print_view_manager_common.h"
 #if defined(ENABLE_PRINT_PREVIEW)
 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 #endif  // defined(ENABLE_PRINT_PREVIEW)
 #endif  // defined(ENABLE_PRINTING)
 
 #if defined(ENABLE_RLZ)
 #include "components/rlz/rlz_tracker.h"
 #endif
 
+#if defined(ENABLE_MEDIA_ROUTER)
+#include "chrome/browser/media/router/media_router_dialog_controller.h"
+#include "chrome/browser/media/router/media_router_feature.h"
+#endif
+
 namespace {
 const char kOsOverrideForTabletSite[] = "Linux; Android 4.0.3";
 }
 
 using base::UserMetricsAction;
 using bookmarks::BookmarkModel;
 using content::NavigationController;
 using content::NavigationEntry;
 using content::OpenURLParams;
 using content::Referrer;
@@ skipping 785 matching lines @@
 #if defined(OS_WIN)
   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
     return false;
 #endif
 
   return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
       (PrintPreviewShowing(browser) || CanPrint(browser));
 }
 #endif  // ENABLE_BASIC_PRINTING
 
+#if defined(ENABLE_MEDIA_ROUTER)
 bool CanRouteMedia(Browser* browser) {
-  if (!switches::MediaRouterEnabled() || browser->profile()->IsOffTheRecord())
+  if (!media_router::MediaRouterEnabled() ||
+      browser->profile()->IsOffTheRecord()) {
     return false;
+  }
 
   // Do not allow user to open Media Router dialog when there is already an
   // active modal dialog. This avoids overlapping dialogs.
   return !IsShowingWebContentsModalDialog(browser);
 }
 
 void RouteMedia(Browser* browser) {
   DCHECK(CanRouteMedia(browser));
 
   media_router::MediaRouterDialogController* dialog_controller =
       media_router::MediaRouterDialogController::GetOrCreateForWebContents(
           browser->tab_strip_model()->GetActiveWebContents());
   if (!dialog_controller)
     return;
 
   dialog_controller->ShowMediaRouterDialog();
 }
+#endif  // defined(ENABLE_MEDIA_ROUTER)
 
 void EmailPageLocation(Browser* browser) {
   content::RecordAction(UserMetricsAction("EmailPageLocation"));
   WebContents* wc = browser->tab_strip_model()->GetActiveWebContents();
   DCHECK(wc);
 
   std::string title = net::EscapeQueryParamValue(
       base::UTF16ToUTF8(wc->GetTitle()), false);
   std::string page_url = net::EscapeQueryParamValue(wc->GetURL().spec(), false);
   std::string mailto = std::string("mailto:?subject=Fwd:%20") +
@@ skipping 362 matching lines @@
                                           browser->host_desktop_type()));
   app_browser->tab_strip_model()->AppendWebContents(contents, true);
 
   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
   contents->GetRenderViewHost()->SyncRendererPrefs();
   app_browser->window()->Show();
 }
 #endif  // defined(ENABLE_EXTENSIONS)
 
 }  // namespace chrome