Do PPB_FileIO Query and Read in the plugin process.

ppapi/tests/test_file_ref.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ppapi/tests/test_file_ref.h"
 
 #include <stdio.h>
 
 #include <sstream>
 #include <vector>
@@ skipping 347 matching lines @@
                    callback.GetCallback()));
   CHECK_CALLBACK_BEHAVIOR(callback);
   ASSERT_EQ(PP_OK, callback.result());
 
   // Write some data to have a non-zero file size.
   callback.WaitForResult(file_io.Write(0, "test", 4, callback.GetCallback()));
   CHECK_CALLBACK_BEHAVIOR(callback);
   ASSERT_EQ(4, callback.result());
 
   // Touch.
-  // last_access_time's granularity is 1 day
+  const PP_Time last_access_time = 123 * 24 * 3600.0;
   // last_modified_time's granularity is 2 seconds
-  const PP_Time last_access_time = 123 * 24 * 3600.0;
-  const PP_Time last_modified_time = 246.0;
+  // See note in test_file_io.cc for why we use this time.
+  const PP_Time last_modified_time = 100 * 24 * 3600.0;
   callback.WaitForResult(file_ref.Touch(last_access_time, last_modified_time,
                                         callback.GetCallback()));
   CHECK_CALLBACK_BEHAVIOR(callback);
   ASSERT_EQ(PP_OK, callback.result());
 
   // Touch aborted.
   int32_t rv = PP_ERROR_FAILED;
   {
     rv = pp::FileRef(file_system, "/file_touch_abort")
         .Touch(last_access_time, last_modified_time, callback.GetCallback());
@@ skipping 361 matching lines @@
   {
     rv = pp::FileRef(file_system, test_dir_name)
         .ReadDirectoryEntries(output_callback.GetCallback());
   }
   output_callback.WaitForAbortResult(rv);
   CHECK_CALLBACK_BEHAVIOR(output_callback);
 
 
   PASS();
 }