Convert Pass()→std::move() for Mac build.

chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm

Index: chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm
diff --git a/chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm b/chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm
index 48f3579cf17b65979872ff45fe034ce969e73d74..2fd6acaf30899d6b93419c3a738816aadd482d0f 100644
--- a/chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm
+++ b/chrome/browser/ui/cocoa/download/download_shelf_controller_unittest.mm
@@ -2,15 +2,18 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#import "chrome/browser/ui/cocoa/download/download_shelf_controller.h"
+
 #import <Cocoa/Cocoa.h>
 
+#include <utility>
+
 #import "base/mac/scoped_block.h"
 #import "base/mac/scoped_nsobject.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/download/download_shelf.h"
 #include "chrome/browser/ui/cocoa/cocoa_profile_test.h"
 #import "chrome/browser/ui/cocoa/download/download_item_controller.h"
-#import "chrome/browser/ui/cocoa/download/download_shelf_controller.h"
 #import "chrome/browser/ui/cocoa/view_resizer_pong.h"
 #include "content/public/test/mock_download_item.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ -36,7 +39,7 @@ using ::testing::AnyNumber;
 @implementation WrappedMockDownloadItem
 - (id)initWithMockDownload:(scoped_ptr<content::MockDownloadItem>)download {
   if ((self = [super init])) {
-    download_ = download.Pass();
+    download_ = std::move(download);
   }
   return self;
 }
@@ -143,7 +146,8 @@ id DownloadShelfControllerTest::CreateItemController() {
       .WillByDefault(Return(content::DownloadItem::IN_PROGRESS));
 
   base::scoped_nsobject<WrappedMockDownloadItem> wrappedMockDownload(
-      [[WrappedMockDownloadItem alloc] initWithMockDownload:download.Pass()]);
+      [[WrappedMockDownloadItem alloc]
+          initWithMockDownload:std::move(download)]);
 
   id item_controller =
       [OCMockObject mockForClass:[DownloadItemController class]];