Add 1.6x mode.

ui/display/test/display_manager_test_api.h

 // 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.
 
 #ifndef UI_DISPLAY_TEST_DISPLAY_MANAGER_TEST_API_H_
 #define UI_DISPLAY_TEST_DISPLAY_MANAGER_TEST_API_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 53 matching lines @@
   friend class ScopedSetInternalDisplayId;
   // Sets the display id for internal display and
   // update the display mode list if necessary.
   void SetInternalDisplayId(int64_t id);
 
   DisplayManager* display_manager_;  // not owned
 
   DISALLOW_COPY_AND_ASSIGN(DisplayManagerTestApi);
 };
 
-class DISPLAY_EXPORT ScopedDisable125DSFForUIScaling {
- public:
-  ScopedDisable125DSFForUIScaling();
-  ~ScopedDisable125DSFForUIScaling();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ScopedDisable125DSFForUIScaling);
-};
-
 class DISPLAY_EXPORT ScopedSetInternalDisplayId {
  public:
   ScopedSetInternalDisplayId(DisplayManager* test_api, int64_t id);
   ~ScopedSetInternalDisplayId();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedSetInternalDisplayId);
 };
 
 // Sets the display mode that matches the |resolution| for |display_id|.
@@ skipping 12 matching lines @@
     int offset);
 
 // Creates the DisplayIdList from ints.
 DISPLAY_EXPORT DisplayIdList CreateDisplayIdList2(int64_t id1, int64_t id2);
 DISPLAY_EXPORT DisplayIdList CreateDisplayIdListN(size_t count, ...);
 
 }  // namespace test
 }  // namespace display
 
 #endif  // UI_DISPLAY_TEST_DISPLAY_MANAGER_TEST_API_H_