Enable subpixel positioning for internal display with dsf larger than 1.0

ui/gfx/font_render_params.h

Index: ui/gfx/font_render_params.h
diff --git a/ui/gfx/font_render_params.h b/ui/gfx/font_render_params.h
index cd7c0a45115c3d7fb364768a31cced9cf9eb4232..219dbfd1b19ab9bcb09c8dd055a2861f3f3f2c43 100644
--- a/ui/gfx/font_render_params.h
+++ b/ui/gfx/font_render_params.h
@@ -98,6 +98,16 @@ GFX_EXPORT FontRenderParams GetFontRenderParams(
 // out what's going on here.
 GFX_EXPORT void ClearFontRenderParamsCacheForTest();
 
+// Enables/Disables the subpixel positioning in browser process.
+#if defined(OS_CHROMEOS)
+GFX_EXPORT void SetDeviceScaleFactorForInternalDisplay(

[Daniel Erat, 2014/08/19 22:32:25]

mind renaming this to mention fonts so it's easier to tell what it's doing?

gfx::SetFontRenderParamsDeviceScaleFactor();

[oshima, 2014/08/20 01:41:12]

Done.

+    float device_scale_factor);
+
+namespace test {
+GFX_EXPORT bool GetBrowserTextSubpixelPoisitioningEnabled();

[Daniel Erat, 2014/08/19 22:32:25]

i don't think you need this; you should be able to just call
GetFontRenderParams() and check subpixel_positioning

(also, there's a typo here: should be Positioning)

[oshima, 2014/08/20 01:41:12]

Done.

+}
+#endif
+
 }  // namespace gfx
 
 #endif  // UI_GFX_FONT_RENDER_PARAMS_H_