Fix NSPasteboard leaks.

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

 // Copyright (c) 2011 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.
 
 // Download utility test for Mac OS X.
 
 #include "base/files/file_path.h"
+#include "base/memory/ref_counted.h"
 #include "base/path_service.h"
 #include "base/strings/sys_string_conversions.h"
 #import "chrome/browser/ui/cocoa/cocoa_test_helper.h"
 #import "chrome/browser/ui/cocoa/download/download_util_mac.h"
 #include "chrome/common/chrome_paths.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #import "testing/gtest_mac.h"
 #include "testing/platform_test.h"
+#import "ui/base/clipboard/clipboard_util_mac.h"
 
 namespace {
 
 class DownloadUtilMacTest : public CocoaTest {
  public:
-  DownloadUtilMacTest() {
-    pasteboard_ = [NSPasteboard pasteboardWithUniqueName];
-  }
+  DownloadUtilMacTest() { pasteboard_ = new ui::UniquePasteboard; }
 
-  ~DownloadUtilMacTest() override { [pasteboard_ releaseGlobally]; }
-
-  NSPasteboard* pasteboard() { return pasteboard_; }
+  NSPasteboard* pasteboard() { return pasteboard_->get(); }
 
  private:
-  NSPasteboard* pasteboard_;
+  scoped_refptr<ui::UniquePasteboard> pasteboard_;
 };
 
 // Ensure adding files to the pasteboard methods works as expected.
 TEST_F(DownloadUtilMacTest, AddFileToPasteboardTest) {
   // Get a download test file for addition to the pasteboard.
   base::FilePath testPath;
   ASSERT_TRUE(PathService::Get(chrome::DIR_TEST_DATA, &testPath));
   base::FilePath testFile(FILE_PATH_LITERAL("download-test1.lib"));
   testPath = testPath.Append(testFile);
 
   // Add a test file to the pasteboard via the download_util method.
   download_util::AddFileToPasteboard(pasteboard(), testPath);
 
   // Test to see that the object type for dragging files is available.
   NSArray* types =  [NSArray arrayWithObject:NSFilenamesPboardType];
   NSString* available = [pasteboard() availableTypeFromArray:types];
   EXPECT_TRUE(available != nil);
 
   // Ensure the path is what we expect.
   NSArray* files = [pasteboard() propertyListForType:NSFilenamesPboardType];
   ASSERT_TRUE(files != nil);
   NSString* expectedPath = [files objectAtIndex:0];
   NSString* realPath = base::SysUTF8ToNSString(testPath.value());
   EXPECT_NSEQ(expectedPath, realPath);
 }
 
 }  // namespace