MSAN: Mark GamepadProviderTest.Sanitization as flaky.

device/gamepad/gamepad_provider_unittest.cc

 // Copyright (c) 2012 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 "device/gamepad/gamepad_provider.h"
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 129 matching lines @@
   mock_data_fetcher_->SetTestData(button_down_data);
   mock_data_fetcher_->WaitForDataReadAndCallbacksIssued();
 
   // It should have issued our callback.
   base::RunLoop().RunUntilIdle();
   EXPECT_TRUE(listener.has_user_gesture());
 }
 
 // Crashes. http://crbug.com/106163
 // crbug.com/147549
+// Flaky on MSAN: http://crbug.com/640086
 #if defined(OS_ANDROID)
 #define MAYBE_Sanitization DISABLED_Sanitization
+#elif defined(MEMORY_SANITIZER)
+#define MAYBE_Sanitization DISABLED_Sanitization
 #else
 #define MAYBE_Sanitization Sanitization
 #endif
 // Tests that waiting for a user gesture works properly.
 TEST_F(GamepadProviderTest, MAYBE_Sanitization) {
   WebGamepads active_data;
   active_data.length = 1;
   active_data.items[0].connected = true;
   active_data.items[0].timestamp = 0;
   active_data.items[0].buttonsLength = 1;
@@ skipping 61 matching lines @@
   EXPECT_EQ(1u, output->items[0].buttonsLength);
   EXPECT_EQ(1.f, output->items[0].buttons[0].value);
   EXPECT_TRUE(output->items[0].buttons[0].pressed);
   EXPECT_EQ(1u, output->items[0].axesLength);
   EXPECT_EQ(-1.f, output->items[0].axes[0]);
 }
 
 }  // namespace
 
 }  // namespace device