Files.app: Flip the flag and enable MTP support by default.

chrome/browser/chromeos/file_manager/volume_manager.cc

Index: chrome/browser/chromeos/file_manager/volume_manager.cc
diff --git a/chrome/browser/chromeos/file_manager/volume_manager.cc b/chrome/browser/chromeos/file_manager/volume_manager.cc
index 9548f3c754cff2fd5d05c14bbb3e244b0de719bf..2ed9c2f4e00e0860c82dd15dce62991d7eef19d8 100644
--- a/chrome/browser/chromeos/file_manager/volume_manager.cc
+++ b/chrome/browser/chromeos/file_manager/volume_manager.cc
@@ -395,9 +395,10 @@ void VolumeManager::Initialize() {
   }
 
   // Subscribe to storage monitor for MTP notifications.
-  if (CommandLine::ForCurrentProcess()->HasSwitch(
-          chromeos::switches::kEnableFileManagerMTP) &&
-      storage_monitor::StorageMonitor::GetInstance()) {
+  const bool disable_mtp =
+      CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
+          chromeos::switches::kEnableFileManagerMTP) == "false";
+  if (!disable_mtp && storage_monitor::StorageMonitor::GetInstance()) {
     storage_monitor::StorageMonitor::GetInstance()->EnsureInitialized(
         base::Bind(&VolumeManager::OnStorageMonitorInitialized,
                    weak_ptr_factory_.GetWeakPtr()));