Revert of Propagate information about how ARC apps are launched

chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc

Index: chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc
diff --git a/chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc b/chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc
index cde7f22b3e16064bdc360f8d7f7fd70a9bcbd63c..576874ac79c1d74eb1b00f989adf1dd5df20b38b 100644
--- a/chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc
+++ b/chrome/browser/ui/ash/launcher/arc_app_launcher_browsertest.cc
@@ -19,7 +19,6 @@
 #include "chromeos/chromeos_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "mojo/common/common_type_converters.h"
-#include "ui/events/event_constants.h"
 
 namespace mojo {
 
@@ -260,7 +259,7 @@
     EXPECT_FALSE(shelf_delegate()->GetShelfIDForAppID(app_id));
 
   // Launching non-ready Arc app creates item on shelf and spinning animation.
-  arc::LaunchApp(profile(), app_id, ui::EF_LEFT_MOUSE_BUTTON);
+  arc::LaunchApp(profile(), app_id);
   EXPECT_TRUE(shelf_delegate()->GetShelfIDForAppID(app_id));
   AppAnimatedWaiter(app_id).Wait();
 
@@ -378,7 +377,7 @@
   AppListService* service = AppListService::Get();
   AppListControllerDelegate* delegate = service->GetControllerDelegate();
   EXPECT_FALSE(delegate->IsAppOpen(app_id));
-  arc::LaunchApp(profile(), app_id, ui::EF_LEFT_MOUSE_BUTTON);
+  arc::LaunchApp(profile(), app_id);
   EXPECT_FALSE(delegate->IsAppOpen(app_id));
   // Simulate task creation so the app is marked as running/open.
   std::unique_ptr<ArcAppListPrefs::AppInfo> info = app_prefs()->GetApp(app_id);