base: Remove the string logging from CHECK().

content/public/test/browser_test_base.cc

Index: content/public/test/browser_test_base.cc
diff --git a/content/public/test/browser_test_base.cc b/content/public/test/browser_test_base.cc
index 2333cceee12396f5938785a2917750cb748aeeef..4c1fa3930dbcba85cf72049e5671db8490ee028f 100644
--- a/content/public/test/browser_test_base.cc
+++ b/content/public/test/browser_test_base.cc
@@ -182,10 +182,10 @@ BrowserTestBase::~BrowserTestBase() {
   spawned_test_server_.reset(NULL);
 #endif
 
-  CHECK(set_up_called_) << "SetUp was not called. This probably means that the "
-                           "developer has overridden the method and not called "
-                           "the superclass version. In this case, the test "
-                           "does not run and reports a false positive result.";
+  // SetUp was not called. This probably means that the developer has overridden
+  // the method and not called the superclass version. In this case, the test
+  // does not run and reports a false positive result.
+  CHECK(set_up_called_);
 }
 
 void BrowserTestBase::SetUp() {