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

components/policy/core/common/configuration_policy_provider_test.h

Index: components/policy/core/common/configuration_policy_provider_test.h
diff --git a/components/policy/core/common/configuration_policy_provider_test.h b/components/policy/core/common/configuration_policy_provider_test.h
index a8a0d4316b71b96a3765767c5bcc882318d62c13..4a19f855d692575433b7fa231fa447beb953bcd8 100644
--- a/components/policy/core/common/configuration_policy_provider_test.h
+++ b/components/policy/core/common/configuration_policy_provider_test.h
@@ -67,7 +67,9 @@ class PolicyProviderTestHarness {
  public:
   // |level| and |scope| are the level and scope of the policies returned by
   // the providers from CreateProvider().
-  PolicyProviderTestHarness(PolicyLevel level, PolicyScope scope);
+  PolicyProviderTestHarness(PolicyLevel level,
+                            PolicyScope scope,
+                            PolicySource source);
   virtual ~PolicyProviderTestHarness();
 
   // Actions to run at gtest SetUp() time.
@@ -81,6 +83,7 @@ class PolicyProviderTestHarness {
   // Returns the policy level and scope set by the policy provider.
   PolicyLevel policy_level() const;
   PolicyScope policy_scope() const;
+  PolicySource policy_source() const;
 
   // Helpers to configure the environment the policy provider reads from.
   virtual void InstallEmptyPolicy() = 0;
@@ -103,6 +106,7 @@ class PolicyProviderTestHarness {
  private:
   PolicyLevel level_;
   PolicyScope scope_;
+  PolicySource source_;
 
   DISALLOW_COPY_AND_ASSIGN(PolicyProviderTestHarness);
 };