PlzNavigate: Attempt to fix blink layout tests which fail due to duplicate output from WebFrameClie…

content/test/layouttest_support.cc

Index: content/test/layouttest_support.cc
diff --git a/content/test/layouttest_support.cc b/content/test/layouttest_support.cc
index 117f9bd066ab3b8484fedb3ca73e727e92d9d6b3..85e3439cc6c33a6c3d33c9ddd8235b1cd342c331 100644
--- a/content/test/layouttest_support.cc
+++ b/content/test/layouttest_support.cc
@@ -23,6 +23,7 @@
 #include "content/browser/bluetooth/bluetooth_device_chooser_controller.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
+#include "content/child/request_extra_data.h"
 #include "content/common/renderer.mojom.h"
 #include "content/common/site_isolation_policy.h"
 #include "content/public/common/page_state.h"
@@ -608,4 +609,10 @@ void ForceTextInputStateUpdateForRenderFrame(RenderFrame* frame) {
   }
 }
 
+bool IsNavigationInitiatedByRenderer(const blink::WebURLRequest& request) {
+  RequestExtraData* extra_data = static_cast<RequestExtraData*>(
+      request.getExtraData());
+  return extra_data && extra_data->navigation_initiated_by_renderer();
+}
+
 }  // namespace content