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

components/policy/core/common/mock_configuration_policy_provider.h

 // Copyright 2013 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.
 
 #ifndef COMPONENTS_POLICY_CORE_COMMON_MOCK_CONFIGURATION_POLICY_PROVIDER_H_
 #define COMPONENTS_POLICY_CORE_COMMON_MOCK_CONFIGURATION_POLICY_PROVIDER_H_
 
 #include "base/basictypes.h"
 #include "components/policy/core/common/configuration_policy_provider.h"
 #include "components/policy/core/common/policy_map.h"
@@ skipping 29 matching lines @@
     ConfigurationPolicyProvider::Init(&registry_);
   }
 
   // Convenience method that installs an expectation on RefreshPolicies that
   // just notifies the observers and serves the same policies.
   void SetAutoRefresh();
 
  private:
   void RefreshWithSamePolicies();
 
+  // Hide method of ConfigurationPolicyProvider so sources stay unchanged.
+  MOCK_METHOD0(SetPolicySources, void());
+
   SchemaRegistry registry_;
 
   DISALLOW_COPY_AND_ASSIGN(MockConfigurationPolicyProvider);
 };
 
 class MockConfigurationPolicyObserver
     : public ConfigurationPolicyProvider::Observer {
  public:
   MockConfigurationPolicyObserver();
   virtual ~MockConfigurationPolicyObserver();
 
   MOCK_METHOD1(OnUpdatePolicy, void(ConfigurationPolicyProvider*));
 };
 
 }  // namespace policy
 
 #endif  // COMPONENTS_POLICY_CORE_COMMON_MOCK_CONFIGURATION_POLICY_PROVIDER_H_