Move IME related functions from WebFrame to WebLocalFrame

components/test_runner/test_runner_for_specific_view.cc

Index: components/test_runner/test_runner_for_specific_view.cc
diff --git a/components/test_runner/test_runner_for_specific_view.cc b/components/test_runner/test_runner_for_specific_view.cc
index 3cc1fb7a9f1c331cbd0715647e6d908475a8ae47..11dfca60f51c252ed3fda101c77deee6a9b4b0ae 100644
--- a/components/test_runner/test_runner_for_specific_view.cc
+++ b/components/test_runner/test_runner_for_specific_view.cc
@@ -673,7 +673,11 @@ bool TestRunnerForSpecificView::FindString(
 }
 
 std::string TestRunnerForSpecificView::SelectionAsMarkup() {
-  return web_view()->mainFrame()->selectionAsMarkup().utf8();
+  if (!web_view()->mainFrame()->toWebLocalFrame()) {
+    CHECK(false) << "This function cannot be called if the main frame is not a "
+                    "local frame.";
+  }
+  return web_view()->mainFrame()->toWebLocalFrame()->selectionAsMarkup().utf8();
 }
 
 void TestRunnerForSpecificView::SetViewSourceForFrame(const std::string& name,