build blob as a component

webkit/blob/blob_url_request_job_factory.h

 // Copyright (c) 2011 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 WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_
 #define WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "net/url_request/url_request_job_factory.h"
+#include "webkit/blob/blob_export.h"
 
 namespace base {
 class MessageLoopProxy;
 }  // namespace base
 
 namespace net {
 class URLRequest;
 }  // namespace net
 
 namespace webkit_blob {
 
 class BlobData;
 class BlobStorageController;
 
-class BlobProtocolHandler
+class BLOB_EXPORT BlobProtocolHandler
     : public net::URLRequestJobFactory::ProtocolHandler {
  public:
   // |controller|'s lifetime should exceed the lifetime of the ProtocolHandler.
   explicit BlobProtocolHandler(
       BlobStorageController* blob_storage_controller,
       base::MessageLoopProxy* file_loop_proxy);
   virtual ~BlobProtocolHandler();
 
   virtual net::URLRequestJob* MaybeCreateJob(
       net::URLRequest* request) const OVERRIDE;
 
  private:
   virtual scoped_refptr<BlobData> LookupBlobData(
       net::URLRequest* request) const;
 
   // No scoped_refptr because |blob_storage_controller_| is owned by the
   // ProfileIOData, which also owns this ProtocolHandler.
   BlobStorageController* const blob_storage_controller_;
   const scoped_refptr<base::MessageLoopProxy> file_loop_proxy_;
 
   DISALLOW_COPY_AND_ASSIGN(BlobProtocolHandler);
 };
 
 }  // namespace webkit_blob
 
 #endif  // WEBKIT_BLOB_BLOB_URL_REQUEST_JOB_FACTORY_H_