Do not call stat() when reading directories via File API.

chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc

Index: chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc
diff --git a/chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc b/chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc
index b76399048c18687c7597e57229d955672fee84e8..3e9aea5275113bd89ae1dc92184b53ff4998d7c2 100644
--- a/chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc
+++ b/chrome/browser/chromeos/file_system_provider/operations/read_directory_unittest.cc
@@ -186,9 +186,6 @@ TEST_F(FileSystemProviderOperationsReadDirectoryTest, OnSuccess) {
       "    {\n"
       "      \"isDirectory\": false,\n"
       "      \"name\": \"blueberries.txt\",\n"
-      "      \"size\": 4096,\n"
-      "      \"modificationTime\": {\n"
-      "        \"value\": \"Thu Apr 24 00:46:52 UTC 2014\"\n"
       "      }\n"
       "    }\n"
       "  ],\n"
@@ -209,11 +206,6 @@ TEST_F(FileSystemProviderOperationsReadDirectoryTest, OnSuccess) {
   const storage::DirectoryEntry entry = event->entry_list()[0];
   EXPECT_FALSE(entry.is_directory);
   EXPECT_EQ("blueberries.txt", entry.name);
-  EXPECT_EQ(4096, entry.size);
-  base::Time expected_time;
-  EXPECT_TRUE(
-      base::Time::FromString("Thu Apr 24 00:46:52 UTC 2014", &expected_time));
-  EXPECT_EQ(expected_time, entry.last_modified_time);
 }
 
 TEST_F(FileSystemProviderOperationsReadDirectoryTest,