Move policy code into components/policy.

components/policy/core/common/policy_service.h

Index: components/policy/core/common/policy_service.h
diff --git a/chrome/browser/policy/policy_service.h b/components/policy/core/common/policy_service.h
similarity index 92%
rename from chrome/browser/policy/policy_service.h
rename to components/policy/core/common/policy_service.h
index 259f70a276f9fcf9322c5ed252d376313ed656b6..4293e5c363ade7b2d6cd80c1c94d8f931b472432 100644
--- a/chrome/browser/policy/policy_service.h
+++ b/components/policy/core/common/policy_service.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_POLICY_POLICY_SERVICE_H_
-#define CHROME_BROWSER_POLICY_POLICY_SERVICE_H_
+#ifndef COMPONENTS_POLICY_CORE_COMMON_POLICY_SERVICE_H_
+#define COMPONENTS_POLICY_CORE_COMMON_POLICY_SERVICE_H_
 
 #include <map>
 #include <string>
@@ -12,6 +12,7 @@
 #include "base/callback.h"
 #include "components/policy/core/common/policy_map.h"
 #include "components/policy/core/common/policy_namespace.h"
+#include "components/policy/policy_export.h"
 
 namespace policy {
 
@@ -22,9 +23,9 @@ namespace policy {
 // The PolicyService is available from BrowserProcess as a global singleton.
 // There is also a PolicyService for browser-wide policies available from
 // BrowserProcess as a global singleton.
-class PolicyService {
+class POLICY_EXPORT PolicyService {
  public:
-  class Observer {
+  class POLICY_EXPORT Observer {
    public:
     // Invoked whenever policies for the given |ns| namespace are modified.
     // This is only invoked for changes that happen after AddObserver is called.
@@ -75,7 +76,7 @@ class PolicyService {
 
 // A registrar that only observes changes to particular policies within the
 // PolicyMap for the given policy namespace.
-class PolicyChangeRegistrar : public PolicyService::Observer {
+class POLICY_EXPORT PolicyChangeRegistrar : public PolicyService::Observer {
  public:
   typedef base::Callback<void(const Value*, const Value*)> UpdateCallback;
 
@@ -111,4 +112,4 @@ class PolicyChangeRegistrar : public PolicyService::Observer {
 
 }  // namespace policy
 
-#endif  // CHROME_BROWSER_POLICY_POLICY_SERVICE_H_
+#endif  // COMPONENTS_POLICY_CORE_COMMON_POLICY_SERVICE_H_