[subresource_filter] Display dev tools console message for subresource blocking

content/shell/test_runner/mock_web_document_subresource_filter.cc

Index: content/shell/test_runner/mock_web_document_subresource_filter.cc
diff --git a/content/shell/test_runner/mock_web_document_subresource_filter.cc b/content/shell/test_runner/mock_web_document_subresource_filter.cc
index 6d338c64c90fa8f60583bc80b4169ac95d1963bf..2b3f68cf3e8f7e3fb4af04503ec468b15c0c768a 100644
--- a/content/shell/test_runner/mock_web_document_subresource_filter.cc
+++ b/content/shell/test_runner/mock_web_document_subresource_filter.cc
@@ -47,7 +47,7 @@ MockWebDocumentSubresourceFilter::getLoadPolicyImpl(const blink::WebURL& url) {
 void MockWebDocumentSubresourceFilter::ReportDisallowedLoad() {}
 
 bool MockWebDocumentSubresourceFilter::ShouldLogToConsole() {
-  return false;
+  return true;
 }
 
 }  // namespace test_runner