base: Remove the string logging from CHECK().

base/logging_unittest.cc

Index: base/logging_unittest.cc
diff --git a/base/logging_unittest.cc b/base/logging_unittest.cc
index f41cce2f43b390fa9603a14f3f689fe87d0dcb33..e73b00aabde63e9e929e3281f522ab2405b7add3 100644
--- a/base/logging_unittest.cc
+++ b/base/logging_unittest.cc
@@ -180,12 +180,10 @@ TEST_F(LoggingTest, CheckStreamsAreLazy) {
 
   SetLogAssertHandler(&LogSink);
 
-  CHECK(mock_log_source.Log()) << uncalled_mock_log_source.Log();
-  PCHECK(!mock_log_source.Log()) << mock_log_source.Log();
-  CHECK_EQ(mock_log_source.Log(), mock_log_source.Log())
-      << uncalled_mock_log_source.Log();
-  CHECK_NE(mock_log_source.Log(), mock_log_source.Log())
-      << mock_log_source.Log();
+  CHECK(mock_log_source.Log());
+  CHECK(!mock_log_source.Log());
+  CHECK_EQ(mock_log_source.Log(), mock_log_source.Log());
+  CHECK_NE(mock_log_source.Log(), mock_log_source.Log());
 }
 
 #endif