[StorageMonitor] Handle EjectDevice call for MTP devices

chrome/browser/storage_monitor/image_capture_device.mm

 // 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.
 
 #import "chrome/browser/storage_monitor/image_capture_device.h"
 
 #include "base/file_util.h"
 #include "content/public/browser/browser_thread.h"
 
 namespace {
@@ skipping 74 matching lines @@
 
 - (void)close {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   closing_ = true;
   [camera_ cancelDownload];
   [camera_ requestCloseSession];
   [camera_ setDelegate:nil];
   listener_.reset();
 }
 
+- (void)eject {
+  [camera_ requestEjectOrDisconnect];
+}
+
 - (void)downloadFile:(const std::string&)name
            localPath:(const base::FilePath&)localPath {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   // Find the file with that name and start download.
   for (ICCameraItem* item in [camera_ mediaFiles]) {
     std::string itemName = PathForCameraItem(item).value();
     if (itemName == name) {
       // To create save options for ImageCapture, we need to
       // split the target filename into directory/name
@@ skipping 107 matching lines @@
   // Shared result value from file-copy closure to tell-listener closure.
   base::PlatformFileError* copyResult = new base::PlatformFileError();
   content::BrowserThread::PostTaskAndReply(
       content::BrowserThread::FILE,
       FROM_HERE,
       base::Bind(&RenameFile, savedPath, saveAsPath, copyResult),
       base::Bind(&ReturnRenameResultToListener, listener_, name, copyResult));
 }
 
 @end  // ImageCaptureDevice