PPAPI: Add new PPB_FileRef.MakeDirectory to support exclusive operation

ppapi/tests/test_file_ref.cc

Index: ppapi/tests/test_file_ref.cc
diff --git a/ppapi/tests/test_file_ref.cc b/ppapi/tests/test_file_ref.cc
index 0a10a32192819ce8118b42855ad1234795b0c720..54ac31624650a9a42312a77a14022c4f5d1fea80 100644
--- a/ppapi/tests/test_file_ref.cc
+++ b/ppapi/tests/test_file_ref.cc
@@ -112,6 +112,7 @@ void TestFileRef::RunTests(const std::string& filter) {
   RUN_CALLBACK_TEST(TestFileRef, GetPath, filter);
   RUN_CALLBACK_TEST(TestFileRef, GetParent, filter);
   RUN_CALLBACK_TEST(TestFileRef, MakeDirectory, filter);
+  RUN_CALLBACK_TEST(TestFileRef, MakeDirectoryExclusive, filter);
   RUN_CALLBACK_TEST(TestFileRef, QueryAndTouchFile, filter);
   RUN_CALLBACK_TEST(TestFileRef, DeleteFileAndDirectory, filter);
   RUN_CALLBACK_TEST(TestFileRef, RenameFileAndDirectory, filter);
@@ -337,6 +338,47 @@ std::string TestFileRef::TestMakeDirectory() {
   PASS();
 }
 
+std::string TestFileRef::TestMakeDirectoryExclusive() {
+  TestCompletionCallback callback(instance_->pp_instance(), callback_type());
+
+  // Open.
+  pp::FileSystem file_system(instance_, PP_FILESYSTEMTYPE_LOCALTEMPORARY);
+  callback.WaitForResult(file_system.Open(1024, callback.GetCallback()));
+  CHECK_CALLBACK_BEHAVIOR(callback);
+  ASSERT_EQ(PP_OK, callback.result());
+
+  // Clean up.
+  pp::FileRef dir_ref(file_system, "/dir_exclusive");
+  int32_t rv = DeleteDirectoryRecursively(&dir_ref);
+  ASSERT_TRUE(rv == PP_OK || rv == PP_ERROR_FILENOTFOUND);
+
+  // MakeDirectoryExclusive.
+  callback.WaitForResult(dir_ref.MakeDirectoryExclusive(
+      PP_FALSE, callback.GetCallback()));
+  CHECK_CALLBACK_BEHAVIOR(callback);
+  ASSERT_EQ(PP_OK, callback.result());
+
+  // MakeDirectoryExclusive on the existing directory should fail.
+  callback.WaitForResult(dir_ref.MakeDirectoryExclusive(
+      PP_FALSE, callback.GetCallback()));
+  CHECK_CALLBACK_BEHAVIOR(callback);
+  ASSERT_EQ(PP_ERROR_FILEEXISTS, callback.result());
+
+  // MakeDirectoryExclusive with nested path.
+  dir_ref = pp::FileRef(file_system, "/dir_exclusive/dir1/dir2");
+  callback.WaitForResult(dir_ref.MakeDirectoryExclusive(
+      PP_FALSE, callback.GetCallback()));
+  CHECK_CALLBACK_BEHAVIOR(callback);
+  ASSERT_EQ(PP_ERROR_FILENOTFOUND, callback.result());
+
+  callback.WaitForResult(dir_ref.MakeDirectoryExclusive(
+      PP_TRUE, callback.GetCallback()));
+  CHECK_CALLBACK_BEHAVIOR(callback);
+  ASSERT_EQ(PP_OK, callback.result());
+
+  PASS();
+}
+
 std::string TestFileRef::TestQueryAndTouchFile() {
   TestCompletionCallback callback(instance_->pp_instance(), callback_type());
   pp::FileSystem file_system(instance_, PP_FILESYSTEMTYPE_LOCALTEMPORARY);