Move fileapi into its own component

webkit/fileapi/file_system_mount_point_provider.h

Index: webkit/fileapi/file_system_mount_point_provider.h
diff --git a/webkit/fileapi/file_system_mount_point_provider.h b/webkit/fileapi/file_system_mount_point_provider.h
index 4da7a1b3dcf0a3fd7159c58f8f5b3972863cdf6d..e47681b5d121c55719b54d61e626c95e2b5975e0 100644
--- a/webkit/fileapi/file_system_mount_point_provider.h
+++ b/webkit/fileapi/file_system_mount_point_provider.h
@@ -11,6 +11,7 @@
 #include "base/callback_forward.h"
 #include "base/file_path.h"
 #include "base/platform_file.h"
+#include "webkit/fileapi/fileapi_export.h"
 #include "webkit/fileapi/file_system_types.h"
 
 class GURL;
@@ -30,7 +31,7 @@ class RemoteFileSystemProxyInterface;
 
 // An interface to provide mount-point-specific path-related utilities
 // and specialized FileSystemFileUtil instance.
-class FileSystemMountPointProvider {
+class FILEAPI_EXPORT FileSystemMountPointProvider {
  public:
   // Callback for ValidateFileSystemRoot.
   typedef base::Callback<void(base::PlatformFileError error)>