Add SandboxPrioritizedOriginDatabase support for dump_file_system

storage/browser/fileapi/sandbox_prioritized_origin_database.cc

Index: storage/browser/fileapi/sandbox_prioritized_origin_database.cc
diff --git a/storage/browser/fileapi/sandbox_prioritized_origin_database.cc b/storage/browser/fileapi/sandbox_prioritized_origin_database.cc
index 80ccd272ec57c7dbb24af471ff8219cdd58c8850..c55ad42bd710c736856946e24c44762c175e2c9a 100644
--- a/storage/browser/fileapi/sandbox_prioritized_origin_database.cc
+++ b/storage/browser/fileapi/sandbox_prioritized_origin_database.cc
@@ -5,7 +5,6 @@
 #include "storage/browser/fileapi/sandbox_prioritized_origin_database.h"
 
 #include "base/files/file.h"
-#include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/pickle.h"
@@ -14,13 +13,16 @@
 
 namespace storage {
 
-namespace {
-
-const base::FilePath::CharType kPrimaryDirectory[] =
+const base::FilePath::CharType*
+SandboxPrioritizedOriginDatabase::kPrimaryDirectory =
     FILE_PATH_LITERAL("primary");
-const base::FilePath::CharType kPrimaryOriginFile[] =
+
+const base::FilePath::CharType*
+SandboxPrioritizedOriginDatabase::kPrimaryOriginFile =
     FILE_PATH_LITERAL("primary.origin");
 
+namespace {
+
 bool WritePrimaryOriginFile(const base::FilePath& path,
                             const std::string& origin) {
   base::File file(path, base::File::FLAG_OPEN_ALWAYS | base::File::FLAG_WRITE);