Support screen.lockOrientation() / screen.unlockOrientation() when running layout tests

content/shell/renderer/webkit_test_runner.cc

Index: content/shell/renderer/webkit_test_runner.cc
diff --git a/content/shell/renderer/webkit_test_runner.cc b/content/shell/renderer/webkit_test_runner.cc
index 67596c0350725830a25eb7209f23aa3edddb12cd..8df69207fd8e3c666a944def52ea93948d20a247 100644
--- a/content/shell/renderer/webkit_test_runner.cc
+++ b/content/shell/renderer/webkit_test_runner.cc
@@ -257,6 +257,10 @@ void WebKitTestRunner::setScreenOrientation(
   SetMockScreenOrientation(orientation);
 }
 
+void WebKitTestRunner::resetScreenOrientation() {
+  ResetMockScreenOrientation();
+}
+
 void WebKitTestRunner::printMessage(const std::string& message) {
   Send(new ShellViewHostMsg_PrintMessage(routing_id(), message));
 }