[Sync] Convert sync to a static library.

components/sync/syncable/nigori_util.h

Index: components/sync/syncable/nigori_util.h
diff --git a/components/sync/syncable/nigori_util.h b/components/sync/syncable/nigori_util.h
index 344689dfc5a8e9ae710601575b7119e9808a9252..e8cf6706d80e9744ddd7bfa87259689dc1da9c9a 100644
--- a/components/sync/syncable/nigori_util.h
+++ b/components/sync/syncable/nigori_util.h
@@ -9,7 +9,6 @@
 
 #include "base/compiler_specific.h"
 #include "components/sync/base/model_type.h"
-#include "components/sync/base/sync_export.h"
 #include "components/sync/protocol/nigori_specifics.pb.h"
 
 namespace sync_pb {
@@ -34,9 +33,8 @@ class WriteTransaction;
 //          false if some unsynced changes need to be encrypted.
 // This method is similar to ProcessUnsyncedChangesForEncryption but does not
 // modify the data and does not care if data is unnecessarily encrypted.
-SYNC_EXPORT bool VerifyUnsyncedChangesAreEncrypted(
-    BaseTransaction* const trans,
-    ModelTypeSet encrypted_types);
+bool VerifyUnsyncedChangesAreEncrypted(BaseTransaction* const trans,
+                                       ModelTypeSet encrypted_types);
 
 // Processes all unsynced changes and ensures they are appropriately encrypted
 // or unencrypted, based on |encrypted_types|.
@@ -48,15 +46,13 @@ bool ProcessUnsyncedChangesForEncryption(WriteTransaction* const trans);
 bool EntryNeedsEncryption(ModelTypeSet encrypted_types, const Entry& entry);
 
 // Same as EntryNeedsEncryption, but looks at specifics.
-SYNC_EXPORT bool SpecificsNeedsEncryption(
-    ModelTypeSet encrypted_types,
-    const sync_pb::EntitySpecifics& specifics);
+bool SpecificsNeedsEncryption(ModelTypeSet encrypted_types,
+                              const sync_pb::EntitySpecifics& specifics);
 
 // Verifies all data of type |type| is encrypted appropriately.
-SYNC_EXPORT bool VerifyDataTypeEncryptionForTest(BaseTransaction* const trans,
-                                                 ModelType type,
-                                                 bool is_encrypted)
-    WARN_UNUSED_RESULT;
+bool VerifyDataTypeEncryptionForTest(BaseTransaction* const trans,
+                                     ModelType type,
+                                     bool is_encrypted) WARN_UNUSED_RESULT;
 
 // Stores |new_specifics| into |entry|, encrypting if necessary.
 // Returns false if an error encrypting occurred (does not modify |entry|).
@@ -67,10 +63,9 @@ bool UpdateEntryWithEncryption(BaseTransaction* const trans,
 
 // Updates |nigori| to match the encryption state specified by |encrypted_types|
 // and |encrypt_everything|.
-SYNC_EXPORT void UpdateNigoriFromEncryptedTypes(
-    ModelTypeSet encrypted_types,
-    bool encrypt_everything,
-    sync_pb::NigoriSpecifics* nigori);
+void UpdateNigoriFromEncryptedTypes(ModelTypeSet encrypted_types,
+                                    bool encrypt_everything,
+                                    sync_pb::NigoriSpecifics* nigori);
 
 // Extracts the set of encrypted types from a nigori node.
 ModelTypeSet GetEncryptedTypesFromNigori(