Backfill some UI tests.

content/test/test_render_view_host.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/test/test_render_view_host.h"
 
 #include <memory>
 
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
@@ skipping 73 matching lines @@
 
 RenderWidgetHost* TestRenderWidgetHostView::GetRenderWidgetHost() const {
   return rwh_;
 }
 
 gfx::Vector2dF TestRenderWidgetHostView::GetLastScrollOffset() const {
   return gfx::Vector2dF();
 }
 
 gfx::NativeView TestRenderWidgetHostView::GetNativeView() const {
-  return nullptr;
+  return native_view_;
 }
 
 gfx::NativeViewAccessible TestRenderWidgetHostView::GetNativeViewAccessible() {
   return nullptr;
 }
 
 ui::TextInputClient* TestRenderWidgetHostView::GetTextInputClient() {
   return &text_input_client_;
 }
 
@@ skipping 214 matching lines @@
 
 TestRenderFrameHost* RenderViewHostImplTestHarness::main_test_rfh() {
   return contents()->GetMainFrame();
 }
 
 TestWebContents* RenderViewHostImplTestHarness::contents() {
   return static_cast<TestWebContents*>(web_contents());
 }
 
 }  // namespace content