Remove stray platform_file.h from webkit

webkit/browser/fileapi/local_file_stream_writer.cc

Index: webkit/browser/fileapi/local_file_stream_writer.cc
diff --git a/webkit/browser/fileapi/local_file_stream_writer.cc b/webkit/browser/fileapi/local_file_stream_writer.cc
index a6c6a51eee3ee099484a10409680c896c575bd24..22864c0ef129a1be7248729ca08106d601de321e 100644
--- a/webkit/browser/fileapi/local_file_stream_writer.cc
+++ b/webkit/browser/fileapi/local_file_stream_writer.cc
@@ -14,12 +14,12 @@ namespace fileapi {
 
 namespace {
 
-const int kOpenFlagsForWrite = base::PLATFORM_FILE_OPEN |
-                               base::PLATFORM_FILE_WRITE |
-                               base::PLATFORM_FILE_ASYNC;
-const int kCreateFlagsForWrite = base::PLATFORM_FILE_CREATE |
-                                 base::PLATFORM_FILE_WRITE |
-                                 base::PLATFORM_FILE_ASYNC;
+const int kOpenFlagsForWrite = base::File::FLAG_OPEN |
+                               base::File::FLAG_WRITE |
+                               base::File::FLAG_ASYNC;
+const int kCreateFlagsForWrite = base::File::FLAG_CREATE |
+                                 base::File::FLAG_WRITE |
+                                 base::File::FLAG_ASYNC;
 
 }  // namespace