ozone: Use gfx::Display size for touch scaling

ui/gfx/ozone/surface_factory_ozone.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_GFX_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_
 #define UI_GFX_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/native_library.h"
@@ skipping 47 matching lines @@
   typedef base::Callback<void(base::NativeLibrary)> AddGLLibraryCallback;
   typedef base::Callback<void(GLGetProcAddressProc)>
       SetGLGetProcAddressProcCallback;
 
   SurfaceFactoryOzone();
   virtual ~SurfaceFactoryOzone();
 
   // Returns the instance
   static SurfaceFactoryOzone* GetInstance();
 
-  // Returns a display spec as in |CreateDisplayFromSpec| for the default
-  // native surface.
-  virtual const char* DefaultDisplaySpec();
-
   // Sets the implementation delegate. Ownership is retained by the caller.
   static void SetInstance(SurfaceFactoryOzone* impl);
 
   // TODO(rjkroege): decide how to separate screen/display stuff from SFOz
   // This method implements gfx::Screen, particularly useful in Desktop Aura.
   virtual gfx::Screen* CreateDesktopScreen();
 
   // Configures the display hardware. Must be called from within the GPU
   // process before the sandbox has been activated.
   virtual HardwareState InitializeHardware() = 0;
@@ skipping 55 matching lines @@
   // caller. desired_list contains list of desired EGL properties and values.
   virtual const int32* GetEGLSurfaceProperties(const int32* desired_list);
 
  private:
   static SurfaceFactoryOzone* impl_; // not owned
 };
 
 }  // namespace gfx
 
 #endif  // UI_GFX_OZONE_SURFACE_LNUX_FACTORY_OZONE_H_