Revert 271459 "Remove stray platform_file.h from webkit"

trunk/src/webkit/browser/blob/local_file_stream_reader.cc

Index: trunk/src/webkit/browser/blob/local_file_stream_reader.cc
===================================================================
--- trunk/src/webkit/browser/blob/local_file_stream_reader.cc	(revision 271463)
+++ trunk/src/webkit/browser/blob/local_file_stream_reader.cc	(working copy)
@@ -8,6 +8,7 @@
 #include "base/files/file_util_proxy.h"
 #include "base/location.h"
 #include "base/logging.h"
+#include "base/platform_file.h"
 #include "base/task_runner.h"
 #include "net/base/file_stream.h"
 #include "net/base/io_buffer.h"
@@ -17,9 +18,9 @@
 
 namespace {
 
-const int kOpenFlagsForRead = base::File::FLAG_OPEN |
-                              base::File::FLAG_READ |
-                              base::File::FLAG_ASYNC;
+const int kOpenFlagsForRead = base::PLATFORM_FILE_OPEN |
+                              base::PLATFORM_FILE_READ |
+                              base::PLATFORM_FILE_ASYNC;
 
 }  // namespace