Fix Android build.

TBR=morrita@chromium.org

Review URL: https://codereview.chromium.org/804703002
diff --git a/mojo/edk/system/core_unittest.cc b/mojo/edk/system/core_unittest.cc
index f6f2575..b789301 100644
--- a/mojo/edk/system/core_unittest.cc
+++ b/mojo/edk/system/core_unittest.cc
@@ -1304,7 +1304,7 @@
                                          base::Unretained(&waiter))));
   EXPECT_EQ(1u, info.GetAddedAwakableSize());
 
-  EXPECT_EQ(false, info.GetAddedAwakableAt(0)->Awake(MOJO_RESULT_BUSY, 0));
+  EXPECT_FALSE(info.GetAddedAwakableAt(0)->Awake(MOJO_RESULT_BUSY, 0));
   EXPECT_EQ(MOJO_RESULT_BUSY, waiter.result);
 
   EXPECT_EQ(MOJO_RESULT_OK, core()->Close(h));