Re-implement overscan & Implement Display Rotation

ui/aura/root_window_host_win.cc

Index: ui/aura/root_window_host_win.cc
diff --git a/ui/aura/root_window_host_win.cc b/ui/aura/root_window_host_win.cc
index e7e0d9db2a2e0f02825e5e60875353aa212f58c6..6a607a3c61e01e755938770e23a4c96029807039 100644
--- a/ui/aura/root_window_host_win.cc
+++ b/ui/aura/root_window_host_win.cc
@@ -16,6 +16,7 @@
 #include "ui/base/events/event.h"
 #include "ui/base/view_prop.h"
 #include "ui/gfx/display.h"
+#include "ui/gfx/insets.h"
 #include "ui/gfx/screen.h"
 
 using std::max;
@@ -146,6 +147,13 @@ void RootWindowHostWin::SetBounds(const gfx::Rect& bounds) {
     delegate_->OnHostResized(bounds.size());
 }
 
+gfx::Insets RootWindowHostWin::GetInsets() const {
+  return gfx::Insets();
+}
+
+void RootWindowHostWin::SetInsets(const gfx::Insets& insets) {
+}
+
 gfx::Point RootWindowHostWin::GetLocationOnNativeScreen() const {
   RECT r;
   GetClientRect(hwnd(), &r);