Move some file api files to fileapi folder

storage/browser/BUILD.gn

Index: storage/browser/BUILD.gn
diff --git a/storage/browser/BUILD.gn b/storage/browser/BUILD.gn
index 61e76c7aef5bf6173b52b3c6d6e9c14bc5af6fb7..d7f14e34b17dbaad5f66bb4c6e24c5dbe8832c4b 100644
--- a/storage/browser/BUILD.gn
+++ b/storage/browser/BUILD.gn
@@ -21,12 +21,8 @@ component("browser") {
     "blob/blob_url_request_job.h",
     "blob/blob_url_request_job_factory.cc",
     "blob/blob_url_request_job_factory.h",
-    "blob/file_stream_reader.cc",
-    "blob/file_stream_reader.h",
     "blob/internal_blob_data.cc",
     "blob/internal_blob_data.h",
-    "blob/local_file_stream_reader.cc",
-    "blob/local_file_stream_reader.h",
     "blob/scoped_file.cc",
     "blob/scoped_file.h",
     "blob/shareable_blob_data_item.cc",
@@ -57,6 +53,8 @@ component("browser") {
     "fileapi/external_mount_points.h",
     "fileapi/file_observers.h",
     "fileapi/file_permission_policy.h",
+    "fileapi/file_stream_reader.cc",
+    "fileapi/file_stream_reader.h",
     "fileapi/file_stream_writer.h",
     "fileapi/file_system_backend.h",
     "fileapi/file_system_context.cc",
@@ -93,6 +91,8 @@ component("browser") {
     "fileapi/isolated_context.h",
     "fileapi/isolated_file_system_backend.cc",
     "fileapi/isolated_file_system_backend.h",
+    "fileapi/local_file_stream_reader.cc",
+    "fileapi/local_file_stream_reader.h",
     "fileapi/local_file_stream_writer.cc",
     "fileapi/local_file_stream_writer.h",
     "fileapi/local_file_util.cc",