Enable Enterprise enrollment on desktop builds.

components/policy.gypi

Index: components/policy.gypi
diff --git a/components/policy.gypi b/components/policy.gypi
index a47d88101efa09bb9b6e2c173ad9c551bd316d42..d99f7af4f555d13ede2a216a00ebe6c01f801d1c 100644
--- a/components/policy.gypi
+++ b/components/policy.gypi
@@ -128,13 +128,15 @@
         },
         {
           'target_name': 'cloud_policy_proto_generated_compile',
-          'type': 'static_library',
+          'type': '<(component)',
           'sources': [
             '<(cloud_policy_proto_path)',
           ],
           'variables': {
             'proto_in_dir': '<(policy_out_dir)/policy',
             'proto_out_dir': 'policy/proto',
+            'cc_generator_options': 'dllexport_decl=POLICY_PROTO_EXPORT:',
+            'cc_include': 'components/policy/policy_proto_export.h',
           },
           'dependencies': [
             'cloud_policy_code_generate',
@@ -142,6 +144,9 @@
           'includes': [
             '../build/protoc.gypi',
           ],
+          'defines': [
+            'POLICY_PROTO_COMPILATION',
+          ],
           # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
           'msvs_disabled_warnings': [4267, ],
         },
@@ -194,7 +199,7 @@
         },
         {
           'target_name': 'cloud_policy_proto',
-          'type': 'static_library',
+          'type': '<(component)',
           'sources': [
             'policy/proto/chrome_extension_policy.proto',
             'policy/proto/device_management_backend.proto',
@@ -204,6 +209,8 @@
           'variables': {
             'proto_in_dir': 'policy/proto',
             'proto_out_dir': 'policy/proto',
+            'cc_generator_options': 'dllexport_decl=POLICY_PROTO_EXPORT:',
+            'cc_include': 'components/policy/policy_proto_export.h',
           },
           'includes': [
             '../build/protoc.gypi',
@@ -220,6 +227,9 @@
               ],
             }],
           ],
+          'defines': [
+            'POLICY_PROTO_COMPILATION',
+          ],
         },
         {
           'target_name': 'policy_test_support',