Pass device scale factor from display to ws.

services/ui/ws/platform_display_init_params.cc

Index: services/ui/ws/platform_display_init_params.cc
diff --git a/services/ui/ws/platform_display_init_params.cc b/services/ui/ws/platform_display_init_params.cc
index 7fbb50e72d7c26fab9cffec8eab1998981c4e215..c7abdc5b2550fe355bafacc17ecc33001a6ed598 100644
--- a/services/ui/ws/platform_display_init_params.cc
+++ b/services/ui/ws/platform_display_init_params.cc
@@ -4,17 +4,13 @@
 
 #include "services/ui/ws/platform_display_init_params.h"
 
-#include "services/ui/display/platform_screen.h"
 #include "services/ui/surfaces/surfaces_state.h"
 
 namespace ui {
 namespace ws {
 
-PlatformDisplayInitParams::PlatformDisplayInitParams()
-    : display_bounds(gfx::Rect(0, 0, 1024, 768)), display_id(1) {}
+PlatformDisplayInitParams::PlatformDisplayInitParams() {}
 
-PlatformDisplayInitParams::PlatformDisplayInitParams(
-    const PlatformDisplayInitParams& other) = default;
 PlatformDisplayInitParams::~PlatformDisplayInitParams() {}
 
 }  // namespace ws