Fixed the Touchscreen.TouchEventsEnabled histogram to record the correct values on X11 and Ozone ba…

ui/gfx/test/test_screen.cc

+// Copyright 2015 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 <vector>
+
+#include "ui/gfx/test/test_screen.h"
+
+namespace gfx {
+namespace test {
+
+TestScreen::TestScreen() {
+}
+
+TestScreen::~TestScreen() {
+}
+
+gfx::Point TestScreen::GetCursorScreenPoint() {
+  return gfx::Point();
+}
+
+gfx::NativeWindow TestScreen::GetWindowUnderCursor() {
+  return nullptr;
+}
+
+gfx::NativeWindow TestScreen::GetWindowAtScreenPoint(const gfx::Point& point) {
+  return nullptr;
+}
+
+int TestScreen::GetNumDisplays() const {
+  return 1;
+}
+
+std::vector<gfx::Display> TestScreen::GetAllDisplays() const {
+  return std::vector<gfx::Display>(1, display_);
+}
+
+gfx::Display TestScreen::GetDisplayNearestWindow(gfx::NativeView view) const {
+  return display_;
+}
+
+gfx::Display TestScreen::GetDisplayNearestPoint(const gfx::Point& point) const {
+  return display_;
+}
+
+gfx::Display TestScreen::GetDisplayMatching(const gfx::Rect& match_rect) const {
+  return display_;
+}
+
+gfx::Display TestScreen::GetPrimaryDisplay() const {
+  return display_;
+}
+
+void TestScreen::AddObserver(gfx::DisplayObserver* observer) {
+}
+
+void TestScreen::RemoveObserver(gfx::DisplayObserver* observer) {
+}
+
+}  // namespace test
+}  // namespace gfx