Add 1.6x mode.

ui/display/test/display_manager_test_api.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 "ui/display/test/display_manager_test_api.h"
 
 #include <cstdarg>
 #include <vector>
 
 #include "base/strings/string_split.h"
@@ skipping 129 matching lines @@
   return display_manager_->SetDisplayMode(id, mode);
 }
 
 void DisplayManagerTestApi::SetTouchSupport(
     int64_t display_id,
     Display::TouchSupport touch_support) {
   display_manager_->FindDisplayForId(display_id)
       ->set_touch_support(touch_support);
 }
 
-ScopedDisable125DSFForUIScaling::ScopedDisable125DSFForUIScaling() {
-  ManagedDisplayInfo::SetUse125DSFForUIScalingForTest(false);
-}
-
-ScopedDisable125DSFForUIScaling::~ScopedDisable125DSFForUIScaling() {
-  ManagedDisplayInfo::SetUse125DSFForUIScalingForTest(true);
-}
-
 ScopedSetInternalDisplayId::ScopedSetInternalDisplayId(
     DisplayManager* display_manager,
     int64_t id) {
   DisplayManagerTestApi(display_manager).SetInternalDisplayId(id);
 }
 
 ScopedSetInternalDisplayId::~ScopedSetInternalDisplayId() {
   Display::SetInternalDisplayId(kInvalidDisplayId);
 }
 
@@ skipping 33 matching lines @@
   for (size_t i = 0; i < count; i++) {
     int64_t id = va_arg(args, int64_t);
     list.push_back(id);
   }
   SortDisplayIdList(&list);
   return list;
 }
 
 }  // namespace test
 }  // namespace display