Custom frame UI for platform apps on Windows.

ui/views/widget/native_widget_win.h

Index: ui/views/widget/native_widget_win.h
diff --git a/ui/views/widget/native_widget_win.h b/ui/views/widget/native_widget_win.h
index 3094cecb39e0acfd47b512c7cc7a81f240918c28..af67ba1d198e4480621f0ec62aa6fe19e05d3224 100644
--- a/ui/views/widget/native_widget_win.h
+++ b/ui/views/widget/native_widget_win.h
@@ -503,6 +503,10 @@ class VIEWS_EXPORT NativeWidgetWin : public ui::WindowImpl,
   // frame windows.
   void ResetWindowRegion(bool force);
 
+  // When removing the standard frame, tells the DWM how much glass we want on
+  // the edges. Currently hardcoded to 10px on all sides.
+  void UpdateDWMFrame();
+
   // Calls DefWindowProc, safely wrapping the call in a ScopedRedrawLock to
   // prevent frame flicker. DefWindowProc handling can otherwise render the
   // classic-look window title bar directly.
@@ -653,6 +657,8 @@ class VIEWS_EXPORT NativeWidgetWin : public ui::WindowImpl,
   // Init time, before the Widget has created the NonClientView.
   bool has_non_client_view_;
 
+  bool remove_standard_frame_;
+
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
 };