Revert "MainFrame scrollbars should work with RFV instead of FV"

chrome/renderer/autofill/page_click_tracker_browsertest.cc

 // Copyright (c) 2011 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 <memory>
 
 #include "chrome/test/base/chrome_render_view_test.h"
 #include "components/autofill/content/renderer/page_click_listener.h"
 #include "components/autofill/content/renderer/page_click_tracker.h"
 #include "content/public/renderer/render_view.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/WebKit/public/platform/WebFloatPoint.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebInputElement.h"
-#include "third_party/WebKit/public/web/WebRuntimeFeatures.h"
 #include "third_party/WebKit/public/web/WebSettings.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "ui/events/keycodes/keyboard_codes.h"
-#include "ui/native_theme/native_theme_switches.h"
-
-using blink::WebRuntimeFeatures;
 
 namespace autofill {
 
 class TestPageClickListener : public PageClickListener {
  public:
   TestPageClickListener()
       : form_control_element_clicked_called_(false),
         was_focused_(false) {}
 
   void FormControlElementClicked(const blink::WebFormControlElement& element,
@@ skipping 12 matching lines @@
   bool form_control_element_clicked_called_;
   blink::WebFormControlElement form_control_element_clicked_;
   bool was_focused_;
 };
 
 class PageClickTrackerTest : public ChromeRenderViewTest {
  protected:
   void SetUp() override {
     ChromeRenderViewTest::SetUp();
 
-    WebRuntimeFeatures::enableOverlayScrollbars(
-        ui::IsOverlayScrollbarEnabled());
-
     // RenderView creates PageClickTracker but it doesn't keep it around.
     // Rather than make it do so for the test, we create a new object.
     page_click_tracker_.reset(new PageClickTracker(view_->GetMainRenderFrame(),
                                                    &test_listener_));
 
     // Must be set before loading HTML.
     view_->GetWebView()->setDefaultPageScaleLimits(1, 4);
 
     LoadHTML("<form>"
              "  <input type='text' id='text_1'></input><br>"
@@ skipping 178 matching lines @@
   // Tap outside of element bounds, but tap width is overlapping the field.
   gfx::Rect element_bounds = GetElementBounds("text_1");
   SimulateRectTap(element_bounds -
                   gfx::Vector2d(element_bounds.width() / 2 + 1, 0));
   EXPECT_TRUE(test_listener_.form_control_element_clicked_called_);
   EXPECT_FALSE(test_listener_.was_focused_);
   EXPECT_TRUE(text_ == test_listener_.form_control_element_clicked_);
 }
 
 }  // namespace autofill