Apply missing ReferencesParent check

content/browser/child_process_security_policy_unittest.cc

Index: content/browser/child_process_security_policy_unittest.cc
===================================================================
--- content/browser/child_process_security_policy_unittest.cc	(revision 166963)
+++ content/browser/child_process_security_policy_unittest.cc	(working copy)
@@ -347,12 +347,19 @@
 }
 
 TEST_F(ChildProcessSecurityPolicyTest, FilePermissions) {
+  FilePath file = FilePath(FILE_PATH_LITERAL("/home/joe"));
+  FilePath sibling_file = FilePath(FILE_PATH_LITERAL("/home/bob"));
+  FilePath child_file = FilePath(FILE_PATH_LITERAL("/home/joe/file"));
+  FilePath parent_file = FilePath(FILE_PATH_LITERAL("/home"));
+  FilePath parent_slash_file = FilePath(FILE_PATH_LITERAL("/home/"));
+  FilePath evil_file = FilePath(
+      FILE_PATH_LITERAL("/home/joe/../../etc/passwd"));
+
   ChildProcessSecurityPolicyImpl* p =
       ChildProcessSecurityPolicyImpl::GetInstance();
 
   // Grant permissions for a file.
   p->Add(kRendererID);
-  FilePath file = FilePath(FILE_PATH_LITERAL("/etc/passwd"));
   EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, file,
                                         base::PLATFORM_FILE_OPEN));
 
@@ -376,13 +383,25 @@
                                         base::PLATFORM_FILE_OPEN_TRUNCATED |
                                         base::PLATFORM_FILE_READ |
                                         base::PLATFORM_FILE_WRITE));
+  EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, sibling_file,
+                                        base::PLATFORM_FILE_OPEN |
+                                        base::PLATFORM_FILE_READ));
+  EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, parent_file,
+                                        base::PLATFORM_FILE_OPEN |
+                                        base::PLATFORM_FILE_READ));
+  EXPECT_TRUE(p->HasPermissionsForFile(kRendererID, child_file,
+                                        base::PLATFORM_FILE_OPEN |
+                                        base::PLATFORM_FILE_READ));
+  EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, evil_file,
+                                        base::PLATFORM_FILE_OPEN |
+                                        base::PLATFORM_FILE_READ));
   p->Remove(kRendererID);
 
   // Grant permissions for the directory the file is in.
   p->Add(kRendererID);
   EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, file,
                                         base::PLATFORM_FILE_OPEN));
-  p->GrantPermissionsForFile(kRendererID, FilePath(FILE_PATH_LITERAL("/etc")),
+  p->GrantPermissionsForFile(kRendererID, parent_file,
                              base::PLATFORM_FILE_OPEN |
                              base::PLATFORM_FILE_READ);
   EXPECT_TRUE(p->HasPermissionsForFile(kRendererID, file,
@@ -396,7 +415,7 @@
   p->Add(kRendererID);
   EXPECT_FALSE(p->HasPermissionsForFile(kRendererID, file,
                                         base::PLATFORM_FILE_OPEN));
-  p->GrantPermissionsForFile(kRendererID, FilePath(FILE_PATH_LITERAL("/etc/")),
+  p->GrantPermissionsForFile(kRendererID, parent_slash_file,
                              base::PLATFORM_FILE_OPEN |
                              base::PLATFORM_FILE_READ);
   EXPECT_TRUE(p->HasPermissionsForFile(kRendererID, file,