Add SandboxPrioritizedOriginDatabase support for dump_file_system

storage/browser/fileapi/sandbox_prioritized_origin_database.h

Index: storage/browser/fileapi/sandbox_prioritized_origin_database.h
diff --git a/storage/browser/fileapi/sandbox_prioritized_origin_database.h b/storage/browser/fileapi/sandbox_prioritized_origin_database.h
index 438b0b1414274974228a141a48d9b987d1871c21..4309bb39237f0b21eadc8b59630cb2d26ae8bb63 100644
--- a/storage/browser/fileapi/sandbox_prioritized_origin_database.h
+++ b/storage/browser/fileapi/sandbox_prioritized_origin_database.h
@@ -8,6 +8,7 @@
 #include <string>
 #include <vector>
 
+#include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "storage/browser/fileapi/sandbox_origin_database_interface.h"
 
@@ -24,6 +25,9 @@ class SandboxOriginDatabase;
 class STORAGE_EXPORT_PRIVATE SandboxPrioritizedOriginDatabase
     : public SandboxOriginDatabaseInterface {
  public:
+  static const base::FilePath::CharType* kPrimaryDirectory;
+  static const base::FilePath::CharType* kPrimaryOriginFile;
+
   SandboxPrioritizedOriginDatabase(const base::FilePath& file_system_directory,
                                    leveldb::Env* env_override);
   virtual ~SandboxPrioritizedOriginDatabase();