Fix high-DPI on Windows to make use of DIP scaling in WebKit.

ui/gfx/display.cc

Index: ui/gfx/display.cc
diff --git a/ui/gfx/display.cc b/ui/gfx/display.cc
index 5b375891ad0fa271aae4cc990c0f116a724eabc7..f305db28acdf6061e601cf5b897c827f99e8bc8f 100644
--- a/ui/gfx/display.cc
+++ b/ui/gfx/display.cc
@@ -9,20 +9,21 @@
 #include "base/string_number_conversions.h"
 #include "base/stringprintf.h"
 #include "ui/base/ui_base_switches.h"
+#include "ui/base/win/dpi.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/size_conversions.h"
 
 namespace gfx {
 namespace {
 
-bool HasForceDeviceScaleFactor() {
+bool HasForceDeviceScaleFactorImpl() {
   return CommandLine::ForCurrentProcess()->HasSwitch(
       switches::kForceDeviceScaleFactor);
 }
 
 float GetForcedDeviceScaleFactorImpl() {
   double scale_in_double = 1.0;
-  if (HasForceDeviceScaleFactor()) {
+  if (HasForceDeviceScaleFactorImpl()) {
     std::string value = CommandLine::ForCurrentProcess()->
         GetSwitchValueASCII(switches::kForceDeviceScaleFactor);
     if (!base::StringToDouble(value, &scale_in_double))
@@ -42,6 +43,11 @@ float Display::GetForcedDeviceScaleFactor() {
   return kForcedDeviceScaleFactor;
 }
 
+//static
+bool Display::HasForceDeviceScaleFactor() {
+  return HasForceDeviceScaleFactorImpl();
+}
+
 // static
 int64 Display::GetID(uint16 manufacturer_id, uint32 serial_number) {
   int64 new_id = ((static_cast<int64>(manufacturer_id) << 32) | serial_number);