Regularize ownerships and lifecycle for storage monitor platform classes.

chrome/browser/storage_monitor/removable_device_notifications_linux.cc

Index: chrome/browser/storage_monitor/removable_device_notifications_linux.cc
diff --git a/chrome/browser/storage_monitor/removable_device_notifications_linux.cc b/chrome/browser/storage_monitor/removable_device_notifications_linux.cc
index ee62aea33d1c00a3e2ee4e205cb8384d49625416..68178bc1b9658e8cfca2d4b3ef99ca142f5c70db 100644
--- a/chrome/browser/storage_monitor/removable_device_notifications_linux.cc
+++ b/chrome/browser/storage_monitor/removable_device_notifications_linux.cc
@@ -13,6 +13,7 @@
 
 #include "base/basictypes.h"
 #include "base/bind.h"
+#include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/metrics/histogram.h"
 #include "base/stl_util.h"
@@ -21,8 +22,10 @@
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/storage_monitor/media_device_notifications_utils.h"
 #include "chrome/browser/storage_monitor/media_storage_util.h"
+#include "chrome/browser/storage_monitor/media_transfer_protocol_device_observer_linux.h"
 #include "chrome/browser/storage_monitor/removable_device_constants.h"
 #include "chrome/browser/storage_monitor/udev_util_linux.h"
+#include "chrome/common/chrome_switches.h"
 
 namespace chrome {
 
@@ -253,6 +256,12 @@ void RemovableDeviceNotificationsLinux::Init() {
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&RemovableDeviceNotificationsLinux::InitOnFileThread, this));
+
+  if (!CommandLine::ForCurrentProcess()->HasSwitch(switches::kTestType)) {
+    media_transfer_protocol_device_observer_.reset(
+        new MediaTransferProtocolDeviceObserverLinux());
+    media_transfer_protocol_device_observer_->SetNotifications(receiver());
+  }
 }
 
 bool RemovableDeviceNotificationsLinux::GetDeviceInfoForPath(