Send the device scale factor from Windows 8 ASH during initialization via the MetroViewerHostMsg_Se…

ui/gfx/win/dpi.h

Index: ui/gfx/win/dpi.h
diff --git a/ui/gfx/win/dpi.h b/ui/gfx/win/dpi.h
index b66da590d893bec20248aae247e5d5b60cd63839..2664eceb5f755b34c0c4bfb60fdacdb61cfaa332 100644
--- a/ui/gfx/win/dpi.h
+++ b/ui/gfx/win/dpi.h
@@ -22,14 +22,9 @@ GFX_EXPORT void InitDeviceScaleFactor(float scale);
 GFX_EXPORT Size GetDPI();
 
 // Gets the scale factor of the display. For example, if the display DPI is
-// 96 then the scale factor is 1.0. Note that this is the "desktop" scale, which
-// may be differnt than GetModernUIScale().
+// 96 then the scale factor is 1.0. 
 GFX_EXPORT float GetDPIScale();
 
-// Gets the scale factor of the modern (metro) UI display. Returns 1.0 for
-// unscaled or "not running on win8+"
-GFX_EXPORT float GetModernUIScale();
-
 // Tests to see if the command line flag "--high-dpi-support" is set.
 GFX_EXPORT bool IsHighDPIEnabled();