Add 1.6x mode.

ui/display/manager/managed_display_info.h

 // Copyright (c) 2013 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_MANAGER_MANAGED_DISPLAY_INFO_H_
 #define UI_DISPLAY_MANAGER_MANAGED_DISPLAY_INFO_H_
 
 #include <stdint.h>
 #include <algorithm>
 #include <array>
@@ skipping 135 matching lines @@
   //      no overscan. flipped upside-down (180 degree) and 1.5 ui scale.
   // "200x100#300x200|200x100%59.0|100x100%60"
   //      200x100 window at 0,0 origin, with 3 possible resolutions,
   //      300x200, 200x100 at 59 Hz, and 100x100 at 60 Hz.
   static ManagedDisplayInfo CreateFromSpec(const std::string& spec);
 
   // Creates a ManagedDisplayInfo from string spec using given |id|.
   static ManagedDisplayInfo CreateFromSpecWithID(const std::string& spec,
                                                  int64_t id);
 
-  // When this is set to true on the device whose internal display has
-  // 1.25 dsf, Chrome uses 1.0f as a default scale factor, and uses
-  // dsf 1.25 when UI scaling is set to 0.8f.
-  static void SetUse125DSFForUIScalingForTest(bool enable);
-
   ManagedDisplayInfo();
   ManagedDisplayInfo(int64_t id, const std::string& name, bool has_overscan);
   ManagedDisplayInfo(const ManagedDisplayInfo& other);
   ~ManagedDisplayInfo();
 
   int64_t id() const { return id_; }
 
   // The name of the display.
   const std::string& name() const { return name_; }
 
@@ skipping 228 matching lines @@
   // If you add a new member, you need to update Copy().
 };
 
 // Resets the synthesized display id for testing. This
 // is necessary to avoid overflowing the output index.
 void DISPLAY_MANAGER_EXPORT ResetDisplayIdForTest();
 
 }  // namespace display
 
 #endif  //  UI_DISPLAY_MANAGER_MANAGED_DISPLAY_INFO_H_