Fix RunLoopTest.DisallowWaitingDeathTest for official builds.

base/run_loop_unittest.cc

Index: base/run_loop_unittest.cc
diff --git a/base/run_loop_unittest.cc b/base/run_loop_unittest.cc
index dcddcfbf78a9c2257ec11b72194fae44ba3b2960..ea596c60fb76f89946967e985fb690627937c2ef 100644
--- a/base/run_loop_unittest.cc
+++ b/base/run_loop_unittest.cc
@@ -201,7 +201,7 @@ TEST_F(RunLoopTest, DisallowWaitingDeathTest) {
                                             RunLoop nested_run_loop;
                                             nested_run_loop.RunUntilIdle();
                                           }));
-  EXPECT_DEATH({ run_loop_.RunUntilIdle(); }, "Check failed");
+  EXPECT_DEATH({ run_loop_.RunUntilIdle(); }, "");
 }
 #endif  // defined(GTEST_HAS_DEATH_TEST) && !defined(OS_ANDROID)