Hide console log messages for imported WPT tests

content/shell/renderer/layout_test/blink_test_runner.cc

Index: content/shell/renderer/layout_test/blink_test_runner.cc
diff --git a/content/shell/renderer/layout_test/blink_test_runner.cc b/content/shell/renderer/layout_test/blink_test_runner.cc
index 2b46e1225d1d8ca8df12f54cea1010aee4ac86b8..93e45afdfd1392ee49c962848ba12a93501dc7dc 100644
--- a/content/shell/renderer/layout_test/blink_test_runner.cc
+++ b/content/shell/renderer/layout_test/blink_test_runner.cc
@@ -294,6 +294,10 @@ void BlinkTestRunner::SetDeviceOrientationData(
   SetMockDeviceOrientationData(data);
 }
 
+void BlinkTestRunner::PrintStderrMessage(const std::string& message) {
+  Send(new ShellViewHostMsg_PrintStderrMessage(routing_id(), message));
+}
+
 void BlinkTestRunner::PrintMessage(const std::string& message) {
   Send(new ShellViewHostMsg_PrintMessage(routing_id(), message));
 }