Make TestRenderWidgetHostView::Show/Hide call through to RWHI

chrome/browser/extensions/extension_context_menu_model_unittest.cc

Index: chrome/browser/extensions/extension_context_menu_model_unittest.cc
diff --git a/chrome/browser/extensions/extension_context_menu_model_unittest.cc b/chrome/browser/extensions/extension_context_menu_model_unittest.cc
index 3ace2ca56266b6aff432ed4ca7e784180772a50f..d933bb47f031555e3fb7d4bbab612aecceaa40e2 100644
--- a/chrome/browser/extensions/extension_context_menu_model_unittest.cc
+++ b/chrome/browser/extensions/extension_context_menu_model_unittest.cc
@@ -43,6 +43,7 @@
 #include "extensions/common/value_builder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/l10n/l10n_util.h"
+#include "ui/display/test/test_screen.h"
 #include "ui/gfx/image/image.h"
 
 namespace extensions {
@@ -140,6 +141,7 @@ class ExtensionContextMenuModelTest : public ExtensionServiceTestBase {
   void TearDown() override;
 
  private:
+  display::test::TestScreen test_screen_;
   std::unique_ptr<TestBrowserWindow> test_window_;
   std::unique_ptr<Browser> browser_;
 
@@ -192,6 +194,7 @@ Browser* ExtensionContextMenuModelTest::GetBrowser() {
 }
 
 void ExtensionContextMenuModelTest::SetUp() {
+  display::Screen::SetScreenInstance(&test_screen_);
   ExtensionServiceTestBase::SetUp();
   if (content::IsBrowserSideNavigationEnabled())
     content::BrowserSideNavigationSetUp();
@@ -201,6 +204,7 @@ void ExtensionContextMenuModelTest::TearDown() {
   if (content::IsBrowserSideNavigationEnabled())
     content::BrowserSideNavigationTearDown();
   ExtensionServiceTestBase::TearDown();
+  display::Screen::SetScreenInstance(nullptr);
 }
 
 // Tests that applicable menu items are disabled when a ManagementPolicy