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

chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc

Index: chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc
diff --git a/chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc b/chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc
index 71dbb250429e4d5141b598785779a252d806ed33..3104690b8d03403896d31ab2db53a13a69cea4a2 100644
--- a/chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc
+++ b/chrome/browser/net/disk_cache_dir_policy_handler_unittest.cc
@@ -4,6 +4,7 @@
 
 #include <string>
 
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "chrome/browser/net/disk_cache_dir_policy_handler.h"
 #include "chrome/common/pref_names.h"
@@ -29,12 +30,9 @@ TEST_F(DiskCacheDirPolicyTest, Default) {
 
 TEST_F(DiskCacheDirPolicyTest, SetPolicyInvalid) {
   // DiskCacheDir policy expects a string; give it a boolean.
-  policy_.Set(key::kDiskCacheDir,
-              POLICY_LEVEL_MANDATORY,
-              POLICY_SCOPE_USER,
+  policy_.Set(key::kDiskCacheDir, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
               POLICY_SOURCE_CLOUD,
-              new base::FundamentalValue(false),
-              NULL);
+              base::WrapUnique(new base::FundamentalValue(false)), nullptr);
   handler_.ApplyPolicySettings(policy_, &prefs_);
   EXPECT_FALSE(prefs_.GetValue(prefs::kDiskCacheDir, NULL));
 }
@@ -42,12 +40,9 @@ TEST_F(DiskCacheDirPolicyTest, SetPolicyInvalid) {
 TEST_F(DiskCacheDirPolicyTest, SetPolicyValid) {
   // Use a variable in the value. It should be expanded by the handler.
   const std::string in = "${user_name}/foo";
-  policy_.Set(key::kDiskCacheDir,
-              POLICY_LEVEL_MANDATORY,
-              POLICY_SCOPE_USER,
-              POLICY_SOURCE_CLOUD,
-              new base::StringValue(in),
-              NULL);
+  policy_.Set(key::kDiskCacheDir, POLICY_LEVEL_MANDATORY, POLICY_SCOPE_USER,
+              POLICY_SOURCE_CLOUD, base::WrapUnique(new base::StringValue(in)),
+              nullptr);
   handler_.ApplyPolicySettings(policy_, &prefs_);
 
   const base::Value* value;