Add source column to chrome://policy showing the origins of policies.

components/policy/core/common/policy_loader_ios_unittest.mm

Index: components/policy/core/common/policy_loader_ios_unittest.mm
diff --git a/components/policy/core/common/policy_loader_ios_unittest.mm b/components/policy/core/common/policy_loader_ios_unittest.mm
index f22d37f41caecb97a91e8b43290d0a474fa7175b..9c20464e574811cee09f5b797783b20bf1894320 100644
--- a/components/policy/core/common/policy_loader_ios_unittest.mm
+++ b/components/policy/core/common/policy_loader_ios_unittest.mm
@@ -68,7 +68,8 @@ class TestHarness : public PolicyProviderTestHarness {
 };
 
 TestHarness::TestHarness(bool use_encoded_key)
-    : PolicyProviderTestHarness(POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE),
+    : PolicyProviderTestHarness(POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
+                                POLICY_SOURCE_PLATFORM),
       use_encoded_key_(use_encoded_key) {}
 
 TestHarness::~TestHarness() {
@@ -250,10 +251,18 @@ TEST(PolicyProviderIOSTest, ChromePolicyOverEncodedChromePolicy) {
   PolicyBundle expected;
   PolicyMap& expectedMap =
       expected.Get(PolicyNamespace(POLICY_DOMAIN_CHROME, ""));
-  expectedMap.Set("shared", POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
-                  new base::StringValue("right"), NULL);
-  expectedMap.Set("key2", POLICY_LEVEL_MANDATORY, POLICY_SCOPE_MACHINE,
-                  new base::StringValue("value2"), NULL);
+  expectedMap.SetWithSource("shared",
+                            POLICY_LEVEL_MANDATORY,
+                            POLICY_SCOPE_MACHINE,
+                            new base::StringValue("right"),
+                            NULL,
+                            POLICY_SOURCE_PLATFORM);
+  expectedMap.SetWithSource("key2",
+                            POLICY_LEVEL_MANDATORY,
+                            POLICY_SCOPE_MACHINE,
+                            new base::StringValue("value2"),
+                            NULL,
+                            POLICY_SOURCE_PLATFORM);
 
   scoped_refptr<base::TestSimpleTaskRunner> taskRunner =
       new base::TestSimpleTaskRunner();