[Sync] Convert sync to a static library.

components/sync/engine/events/protocol_event.h

 // Copyright (c) 2014 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_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_H_
 #define COMPONENTS_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_H_
 
 #include <memory>
 #include <string>
 
 #include "base/time/time.h"
 #include "base/values.h"
-#include "components/sync/base/sync_export.h"
 
 namespace syncer {
 
 // SyncNetworkEvents represent a single client <-> server sync protocol event
 // that recently took place. Sync protocol events occur when the client decides
 // to send a sync protocol request (such as GetUpdates or Commit) to the server,
 // and when the server responds. Note that the requests and responses themselves
 // are modelled by {GetUpdates, Commit}x{Request,Response} objects.
 //
 // These objects are intended to be used for displaying information on
 // about:sync.  They should be considered to be immutable and opaque.  No
 // program behavior should depend on their contents.
 //
 // Each type of request can maintain its own set of additional metadata and have
 // its own custom serialization routines.  For example, the "configure"
 // GetUpdates request will include information about its "origin" in its debug
 // info.
-class SYNC_EXPORT ProtocolEvent {
+class ProtocolEvent {
  public:
   ProtocolEvent();
   virtual ~ProtocolEvent();
 
   // Returns the time when the request was sent or received.
   virtual base::Time GetTimestamp() const = 0;
 
   // Returns a string representing they type of the request.  Should be short.
   virtual std::string GetType() const = 0;
 
@@ skipping 10 matching lines @@
 
   // A static function that assembles the data exposed through the
   // ProtocolEvent's interface into a single DictionaryValue.
   static std::unique_ptr<base::DictionaryValue> ToValue(
       const ProtocolEvent& event);
 };
 
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_H_