Disable AutofillPrivateApiTests on Linux as well, due to flakiness.

chrome/browser/extensions/api/autofill_private/autofill_private_apitest.cc

 // Copyright 2015 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 "base/command_line.h"
 #include "base/macros.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/common/extensions/api/autofill_private.h"
 #include "components/keyed_service/core/keyed_service.h"
@@ skipping 27 matching lines @@
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AutofillPrivateApiTest);
 };
 
 }  // namespace
 
 // TODO(hcarmona): Investigate converting these tests to unittests.
 
 // TODO(crbug.com/643097) Disabled for flakiness.
-#if defined(OS_WIN)
-#define MAYBE_SaveAddress DISABLED_SaveAddress
-#else
-#define MAYBE_SaveAddress SaveAddress
-#endif  // defined(OS_WIN)
-IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, MAYBE_SaveAddress) {
+IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, DISABLED_SaveAddress) {
   EXPECT_TRUE(RunAutofillSubtest("saveAddress")) << message_;
 }
 
 // TODO(crbug.com/643097) Disabled for flakiness.
-#if defined(OS_WIN)
-#define MAYBE_GetCountryList DISABLED_GetCountryList
-#else
-#define MAYBE_GetCountryList GetCountryList
-#endif  // defined(OS_WIN)
-IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, MAYBE_GetCountryList) {
+IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, DISABLED_GetCountryList) {
   EXPECT_TRUE(RunAutofillSubtest("getCountryList")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, GetAddressComponents) {
   EXPECT_TRUE(RunAutofillSubtest("getAddressComponents")) << message_;
 }
 
 // TODO(crbug.com/643097) Disabled for flakiness.
-#if defined(OS_WIN)
-#define MAYBE_SaveCreditCard DISABLED_SaveCreditCard
-#else
-#define MAYBE_SaveCreditCard SaveCreditCard
-#endif  // defined(OS_WIN)
-IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, MAYBE_SaveCreditCard) {
+IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, DISABLED_SaveCreditCard) {
   EXPECT_TRUE(RunAutofillSubtest("saveCreditCard")) << message_;
 }
 
 // TODO(crbug.com/643097) Disabled for flakiness.
-#if defined(OS_WIN)
-#define MAYBE_RemoveEntry DISABLED_RemoveEntry
-#else
-#define MAYBE_RemoveEntry RemoveEntry
-#endif  // defined(OS_WIN)
-IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, MAYBE_RemoveEntry) {
+IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, DISABLED_RemoveEntry) {
   EXPECT_TRUE(RunAutofillSubtest("removeEntry")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(AutofillPrivateApiTest, ValidatePhoneNumbers) {
   EXPECT_TRUE(RunAutofillSubtest("ValidatePhoneNumbers")) << message_;
 }
 
 }  // namespace extensions