[Sheriff] Disable Flaky test on ChromeOS

See bug for details.

TBR=hansenmichael@google.com

Bug: 1133295
Change-Id: I18353dee3eac0b18a1e5f4ccb6d333c3f0561662
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2438192Reviewed-by: Yi Gu <yigu@chromium.org>
Commit-Queue: Yi Gu <yigu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#811698}

chrome/browser/nearby_sharing/local_device_data/nearby_share_local_device_data_manager_impl_unittest.cc

@@ -8,6 +8,7 @@
 
 #include "base/optional.h"
 #include "base/test/bind_test_util.h"
+#include "build/build_config.h"
 #include "chrome/browser/nearby_sharing/client/fake_nearby_share_client.h"
 #include "chrome/browser/nearby_sharing/common/nearby_share_prefs.h"
 #include "chrome/browser/nearby_sharing/local_device_data/fake_nearby_share_device_data_updater.h"
@@ -259,7 +260,13 @@ TEST_F(NearbyShareLocalDeviceDataManagerImplTest, DeviceId) {
   EXPECT_EQ(id, manager()->GetId());
 }
 
-TEST_F(NearbyShareLocalDeviceDataManagerImplTest, ValidateDeviceName) {
+// Test is flaky. crbug.com/1133295.
+#if defined(OS_CHROMEOS)
+#define MAYBE_ValidateDeviceName DISABLED_ValidateDeviceName
+#else
+#define MAYBE_ValidateDeviceName ValidateDeviceName
+#endif
+TEST_F(NearbyShareLocalDeviceDataManagerImplTest, MAYBE_ValidateDeviceName) {
   CreateManager();
   EXPECT_EQ(manager()->ValidateDeviceName(kFakeDeviceName),
             nearby_share::mojom::DeviceNameValidationResult::kValid);
@@ -272,7 +279,13 @@ TEST_F(NearbyShareLocalDeviceDataManagerImplTest, ValidateDeviceName) {
       nearby_share::mojom::DeviceNameValidationResult::kErrorNotValidUtf8);
 }
 
-TEST_F(NearbyShareLocalDeviceDataManagerImplTest, SetDeviceName) {
+// Test is flaky. crbug.com/1133295.
+#if defined(OS_CHROMEOS)
+#define MAYBE_SetDeviceName DISABLED_SetDeviceName
+#else
+#define MAYBE_SetDeviceName SetDeviceName
+#endif
+TEST_F(NearbyShareLocalDeviceDataManagerImplTest, MAYBE_SetDeviceName) {
   CreateManager();
 
   // The default device name is set in the ctor when the device name is empty.