Use std::unique_ptr to express ownership of base::Value in PolicyMap::Entry

chrome/browser/policy/policy_startup_browsertest.cc

Index: chrome/browser/policy/policy_startup_browsertest.cc
diff --git a/chrome/browser/policy/policy_startup_browsertest.cc b/chrome/browser/policy/policy_startup_browsertest.cc
index 0f4d8e419353365dd7874fba8659f6c9da6ff004..80cde05c879313c2dfa2fb56d649cb192c3b03c6 100644
--- a/chrome/browser/policy/policy_startup_browsertest.cc
+++ b/chrome/browser/policy/policy_startup_browsertest.cc
@@ -7,6 +7,7 @@
 
 #include "base/command_line.h"
 #include "base/macros.h"
+#include "base/memory/ptr_util.h"
 #include "chrome/common/chrome_result_codes.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/base/in_process_browser_test.h"
@@ -32,11 +33,9 @@ class PolicyMakeDefaultBrowserTest : public InProcessBrowserTest {
 
     policy::PolicyMap values;
     values.Set(policy::key::kDefaultBrowserSettingEnabled,
-               policy::POLICY_LEVEL_MANDATORY,
-               policy::POLICY_SCOPE_MACHINE,
+               policy::POLICY_LEVEL_MANDATORY, policy::POLICY_SCOPE_MACHINE,
                policy::POLICY_SOURCE_CLOUD,
-               new base::FundamentalValue(false),
-               NULL);
+               base::WrapUnique(new base::FundamentalValue(false)), nullptr);
     provider_.UpdateChromePolicy(values);
   }