Launch the action choice dialog for USB devices with an DCIM directory.

chrome/browser/chromeos/extensions/file_browser_event_router.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/chromeos/extensions/file_browser_event_router.h"
 
 #include "base/bind.h"
 #include "base/file_util.h"
 #include "base/json/json_writer.h"
 #include "base/message_loop.h"
@@ skipping 688 matching lines @@
   // the screen is locked.
   if (chromeos::BaseLoginDisplayHost::default_host() ||
       chromeos::ScreenLocker::default_screen_locker())
     return;
 
   // According to DCF (Design rule of Camera File system) by JEITA / CP-3461
   // cameras should have pictures located in the DCIM root directory.
   const base::FilePath dcim_path = mount_path.Append(
       FILE_PATH_LITERAL("DCIM"));
 
-  // Show the action choice dialog only for sd cards with a DCIM directory.
-  if (disk.device_type() == chromeos::DEVICE_TYPE_SD) {
-      DirectoryExistsOnUIThread(
-          dcim_path,
-          base::Bind(&file_manager_util::OpenActionChoiceDialog, mount_path),
-          base::Bind(&file_manager_util::ViewRemovableDrive, mount_path));
-  } else {
-    file_manager_util::ViewRemovableDrive(mount_path);
-  }
+  // Show the action choice dialog only for media with a DCIM directory.
+  // Otherwise, just show Files.app.
+  DirectoryExistsOnUIThread(
+      dcim_path,
+      base::Bind(&file_manager_util::OpenActionChoiceDialog, mount_path),
+      base::Bind(&file_manager_util::ViewRemovableDrive, mount_path));
 }
 
 void FileBrowserEventRouter::OnDiskAdded(
     const DiskMountManager::Disk* disk) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   VLOG(1) << "Disk added: " << disk->device_path();
   if (disk->device_path().empty()) {
     VLOG(1) << "Empty system path for " << disk->device_path();
     return;
@@ skipping 184 matching lines @@
 }
 
 bool FileBrowserEventRouter::FileWatcherExtensions::Watch(
     const base::FilePath& path,
     const base::FilePathWatcher::Callback& callback) {
   if (is_remote_file_system_)
     return true;
 
   return file_watcher_->Watch(path, false, callback);
 }