Refactor screen/monitor so that gfx::Screen returns monitor object.

chrome/browser/ui/panels/display_settings_provider.cc

Index: chrome/browser/ui/panels/display_settings_provider.cc
diff --git a/chrome/browser/ui/panels/display_settings_provider.cc b/chrome/browser/ui/panels/display_settings_provider.cc
index b2fed3f6228ead887c82e15ce5c9eae7913e514a..61f77096ab2ca563cbb8f3348a01f12e00354ec6 100644
--- a/chrome/browser/ui/panels/display_settings_provider.cc
+++ b/chrome/browser/ui/panels/display_settings_provider.cc
@@ -72,9 +72,9 @@ gfx::Rect DisplaySettingsProvider::GetWorkArea() const {
 #if defined(OS_MACOSX)
   // On OSX, panels should be dropped all the way to the bottom edge of the
   // screen (and overlap Dock).
-  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitorBounds();
+  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitor().bounds();
 #else
-  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitorWorkArea();
+  gfx::Rect work_area = gfx::Screen::GetPrimaryMonitor().work_area();
 #endif
   return work_area;
 }