win: Min/max size uses scaled DPI size.

atom/browser/ui/views/frameless_view.cc

@@ -15,6 +15,7 @@ namespace {
 
 const int kResizeInsideBoundsSize = 5;
 const int kResizeAreaCornerSize = 16;
+
 const char kViewClassName[] = "FramelessView";
 
 }  // namespace

atom/browser/ui/views/win_frame_view.cc

@@ -5,6 +5,7 @@
 #include "atom/browser/ui/views/win_frame_view.h"
 
 #include "atom/browser/native_window_views.h"
+#include "ui/gfx/win/dpi.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/win/hwnd_util.h"
 
@@ -38,6 +39,16 @@ int WinFrameView::NonClientHitTest(const gfx::Point& point) {
     return FramelessView::NonClientHitTest(point);
 }
 
+gfx::Size WinFrameView::GetMinimumSize() {
+  gfx::Size size = FramelessView::GetMinimumSize();
+  return gfx::win::DIPToScreenSize(size);
+}
+
+gfx::Size WinFrameView::GetMaximumSize() {
+  gfx::Size size = FramelessView::GetMaximumSize();
+  return gfx::win::DIPToScreenSize(size);
+}
+
 const char* WinFrameView::GetClassName() const {
   return kViewClassName;
 }

atom/browser/ui/views/win_frame_view.h

@@ -20,6 +20,8 @@ class WinFrameView : public FramelessView {
   virtual int NonClientHitTest(const gfx::Point& point) OVERRIDE;
 
   // views::View:
+  virtual gfx::Size GetMinimumSize() OVERRIDE;
+  virtual gfx::Size GetMaximumSize() OVERRIDE;
   virtual const char* GetClassName() const OVERRIDE;
 
  private: