Updates subpixel positioning and hinting when DSF is changed

ash/display/display_manager.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 ASH_DISPLAY_DISPLAY_MANAGER_H_
 #define ASH_DISPLAY_DISPLAY_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 104 matching lines @@
 
   // Initializes displays using command line flag. Returns false
   // if no command line flag was provided.
   bool InitFromCommandLine();
 
   // Initialize default display.
   void InitDefaultDisplay();
 
   // Initializes font related params that depends on display
   // configuration.
-  void InitFontParams();
+  void RefreshFontParams();
 
   // True if the given |display| is currently connected.
   bool IsActiveDisplay(const gfx::Display& display) const;
 
   // True if there is an internal display.
   bool HasInternalDisplay() const;
 
   bool IsInternalDisplayId(int64 id) const;
 
   // Returns the display layout used for current displays.
@@ skipping 267 matching lines @@
   gfx::Display::Rotation registered_internal_display_rotation_;
 
   base::WeakPtrFactory<DisplayManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DisplayManager);
 };
 
 }  // namespace ash
 
 #endif  // ASH_DISPLAY_DISPLAY_MANAGER_H_