Replicating LayoutDumpFlags across OOPIFs.

components/test_runner/web_test_delegate.h

Index: components/test_runner/web_test_delegate.h
diff --git a/components/test_runner/web_test_delegate.h b/components/test_runner/web_test_delegate.h
index ce757db8ddce8984237051489ea3817be25838bf..47ca9463861cc1145c9a78d3f357063f98d2df2e 100644
--- a/components/test_runner/web_test_delegate.h
+++ b/components/test_runner/web_test_delegate.h
@@ -47,6 +47,7 @@ namespace test_runner {
 
 class DeviceLightData;
 class GamepadController;
+class LayoutDumpFlags;
 class WebTask;
 class WebTestProxyBase;
 struct TestPreferences;
@@ -212,6 +213,10 @@ class WebTestDelegate {
   // Sets the POSIX locale of the current process.
   virtual void SetLocale(const std::string& locale) = 0;
 
+  // Invoked when layout dump flags change.
+  virtual void OnLayoutDumpFlagsChanged(
+      test_runner::LayoutDumpFlags* layout_dump_flags) = 0;
+
   // Invoked when the test finished.
   virtual void TestFinished() = 0;