Clean up warnings in inputflinger.

Bug: http://b/26936282
Change-Id: Ie1fb281425c3b8c4b3e6e88dc5722d51b77ee093
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 42bc865..a7fe69c 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -1528,8 +1528,8 @@
     NotifySwitchArgs args;
     ASSERT_NO_FATAL_FAILURE(mFakeListener->assertNotifySwitchWasCalled(&args));
     ASSERT_EQ(ARBITRARY_TIME, args.eventTime);
-    ASSERT_EQ((1 << SW_LID) | (1 << SW_JACK_PHYSICAL_INSERT), args.switchValues);
-    ASSERT_EQ((1 << SW_LID) | (1 << SW_JACK_PHYSICAL_INSERT) | (1 << SW_HEADPHONE_INSERT),
+    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT), args.switchValues);
+    ASSERT_EQ((1U << SW_LID) | (1U << SW_JACK_PHYSICAL_INSERT) | (1 << SW_HEADPHONE_INSERT),
             args.switchMask);
     ASSERT_EQ(uint32_t(0), args.policyFlags);
 }