Fix NSPasteboard leaks.

content/common/sandbox_mac_system_access_unittest.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 <Cocoa/Cocoa.h>
 #include <openssl/rand.h>
 #include <stdint.h>
 
 #include "base/files/file_util.h"
 #include "base/files/scoped_file.h"
 #include "base/logging.h"
+#include "base/memory/ref_counted.h"
 #include "base/strings/sys_string_conversions.h"
 #include "content/common/sandbox_mac.h"
 #include "content/common/sandbox_mac_unittest_helper.h"
 #include "crypto/openssl_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#import "ui/base/clipboard/clipboard_util_mac.h"
 
 namespace content {
 
 //--------------------- Clipboard Sandboxing ----------------------
 // Test case for checking sandboxing of clipboard access.
 class MacSandboxedClipboardTestCase : public MacSandboxTestCase {
  public:
   MacSandboxedClipboardTestCase();
   ~MacSandboxedClipboardTestCase() override;
 
@@ skipping 35 matching lines @@
   }
 
   return true;
 }
 
 void MacSandboxedClipboardTestCase::SetTestData(const char* test_data) {
   clipboard_name_ = [base::SysUTF8ToNSString(test_data) retain];
 }
 
 TEST_F(MacSandboxTest, ClipboardAccess) {
-  NSPasteboard* pb = [NSPasteboard pasteboardWithUniqueName];
-  EXPECT_EQ([[pb types] count], 0U);
+  scoped_refptr<ui::UniquePasteboard> pb = new ui::UniquePasteboard;
+  ASSERT_TRUE(pb->get());
+  EXPECT_EQ([[pb->get() types] count], 0U);
 
-  std::string pasteboard_name = base::SysNSStringToUTF8([pb name]);
+  std::string pasteboard_name = base::SysNSStringToUTF8([pb->get() name]);
   EXPECT_TRUE(RunTestInAllSandboxTypes("MacSandboxedClipboardTestCase",
                                        pasteboard_name.c_str()));
 
   // After executing the test, the clipboard should still be empty.
-  EXPECT_EQ([[pb types] count], 0U);
+  EXPECT_EQ([[pb->get() types] count], 0U);
 }
 
 //--------------------- File Access Sandboxing ----------------------
 // Test case for checking sandboxing of filesystem apis.
 class MacSandboxedFileAccessTestCase : public MacSandboxTestCase {
  public:
   bool SandboxedTest() override;
 };
 
 REGISTER_SANDBOX_TEST_CASE(MacSandboxedFileAccessTestCase);
@@ skipping 47 matching lines @@
   // Ensure that RAND_bytes is functional within the sandbox.
   uint8_t byte;
   return RAND_bytes(&byte, 1) == 1;
 }
 
 TEST_F(MacSandboxTest, OpenSSLAccess) {
   EXPECT_TRUE(RunTestInAllSandboxTypes("MacSandboxedOpenSSLTestCase", NULL));
 }
 
 }  // namespace content