From 6ca7767f09e375710cdb5229d7b08781e101e274 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Sun, 4 Oct 2015 16:52:14 +0800
Subject: [PATCH] linux: Set device scaling factor

---
 brightray/browser/browser_main_parts.cc | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/brightray/browser/browser_main_parts.cc b/brightray/browser/browser_main_parts.cc
index b87be5a8ee35..6fc464fe7f24 100644
--- a/brightray/browser/browser_main_parts.cc
+++ b/brightray/browser/browser_main_parts.cc
@@ -212,10 +212,13 @@ void BrowserMainParts::PostMainMessageLoopRun() {
 
 int BrowserMainParts::PreCreateThreads() {
 #if defined(USE_AURA)
-  gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE,
-                                 views::CreateDesktopScreen());
+  gfx::Screen* screen = views::CreateDesktopScreen();
+  gfx::Screen::SetScreenInstance(gfx::SCREEN_TYPE_NATIVE, screen);
+#if defined(USE_X11)
+  views::LinuxUI::instance()->UpdateDeviceScaleFactor(
+      screen->GetPrimaryDisplay().device_scale_factor());
+#endif
 #endif
-
   return 0;
 }