NOT FOR SUBMIT - Windows Views HiDPI

chrome/browser/ui/views/tabs/tab_drag_controller.cc

Index: chrome/browser/ui/views/tabs/tab_drag_controller.cc
diff --git a/chrome/browser/ui/views/tabs/tab_drag_controller.cc b/chrome/browser/ui/views/tabs/tab_drag_controller.cc
index f36b867be741d7e209535f2fa7a647e0f98f77a7..192d4d8c156ee4be5806c46a69b736dc31e2b72d 100644
--- a/chrome/browser/ui/views/tabs/tab_drag_controller.cc
+++ b/chrome/browser/ui/views/tabs/tab_drag_controller.cc
@@ -56,6 +56,10 @@
 #include "ui/base/gestures/gesture_recognizer.h"
 #endif
 
+#if defined(OS_WIN)
+#include "ui/base/win/dpi.h"
+#endif
+
 using content::OpenURLParams;
 using content::UserMetricsAction;
 using content::WebContents;
@@ -216,8 +220,13 @@ bool DoesRectContainVerticalPointExpanded(
     const gfx::Rect& bounds,
     int vertical_adjustment,
     int y) {
-  int upper_threshold = bounds.bottom() + vertical_adjustment;
-  int lower_threshold = bounds.y() - vertical_adjustment;
+#if defined(OS_WIN)
+  static float scale = ui::win::GetDeviceScaleFactor();
+#else
+  static float scale = 1.0;
+#endif
+  int upper_threshold = bounds.bottom() + scale * vertical_adjustment;
+  int lower_threshold = bounds.y() - scale * vertical_adjustment;
   return y >= lower_threshold && y <= upper_threshold;
 }