Move AtomNSWindow to a new file

atom/browser/ui/cocoa/atom_ns_window.h

@@ -0,0 +1,45 @@
+// Copyright (c) 2018 GitHub, Inc.
+// Use of this source code is governed by the MIT license that can be
+// found in the LICENSE file.
+
+#ifndef ATOM_BROWSER_UI_COCOA_ATOM_NS_WINDOW_H_
+#define ATOM_BROWSER_UI_COCOA_ATOM_NS_WINDOW_H_
+
+#include "brightray/browser/mac/event_dispatching_window.h"
+#include "ui/views/cocoa/native_widget_mac_nswindow.h"
+
+namespace atom {
+
+class NativeWindowMac;
+
+// Prevents window from resizing during the scope.
+class ScopedDisableResize {
+ public:
+  ScopedDisableResize() { disable_resize_ = true; }
+  ~ScopedDisableResize() { disable_resize_ = false; }
+
+  static bool IsResizeDisabled() { return disable_resize_; }
+
+ private:
+  static bool disable_resize_;
+};
+
+}  // namespace atom
+
+@interface AtomNSWindow : EventDispatchingWindow {
+ @private
+  atom::NativeWindowMac* shell_;
+  CGFloat windowButtonsInterButtonSpacing_;
+}
+@property BOOL acceptsFirstMouse;
+@property BOOL enableLargerThanScreen;
+@property BOOL disableAutoHideCursor;
+@property BOOL disableKeyOrMainWindow;
+@property NSPoint windowButtonsOffset;
+@property (nonatomic, retain) NSView* vibrantView;
+- (void)setShell:(atom::NativeWindowMac*)shell;
+- (void)enableWindowButtonsOffset;
+- (void)toggleFullScreenMode:(id)sender;
+@end
+
+#endif  // ATOM_BROWSER_UI_COCOA_ATOM_NS_WINDOW_H_