DevTools: Convert inspector-unit tests to use reusable test harness

content/shell/browser/layout_test/layout_test_devtools_frontend.cc

Index: content/shell/browser/layout_test/layout_test_devtools_frontend.cc
diff --git a/content/shell/browser/layout_test/layout_test_devtools_frontend.cc b/content/shell/browser/layout_test/layout_test_devtools_frontend.cc
index d12ddd0e2f21089c8ff4f3c9737db981d05ba866..917a876455bfb260dea28c70cc07cda98256ee5c 100644
--- a/content/shell/browser/layout_test/layout_test_devtools_frontend.cc
+++ b/content/shell/browser/layout_test/layout_test_devtools_frontend.cc
@@ -73,6 +73,17 @@ GURL LayoutTestDevToolsFrontend::GetDevToolsPathAsURL(
   return GURL(url_string);
 }
 
+// static.
+GURL LayoutTestDevToolsFrontend::MapJSTestURL(const GURL& test_url) {
+  std::string url_string = GetDevToolsPathAsURL(std::string()).spec();
+  std::string inspector_file_name = "inspector.html";
+  size_t start_position = url_string.find(inspector_file_name);
+  url_string.replace(start_position, inspector_file_name.length(),
+                     "unit_test_runner.html");
+  url_string += "&test=" + test_url.spec();
+  return GURL(url_string);
+}
+
 void LayoutTestDevToolsFrontend::ReuseFrontend(const std::string& settings,
                                                const std::string frontend_url) {
   DisconnectFromTarget();