IDEA-143854 IDEA ignores system DPI setting on Windows

(cherry picked from commit 6a77eaecdf82153b7adcb9797fa5827f9228c93e)

platform/util/src/com/intellij/util/ui/JBUI.java

@@ -79,6 +79,10 @@ public class JBUI {
   }
 
   public static void setScaleFactor(float scale) {
+    if (SystemProperties.has("hidpi") && !SystemProperties.is("hidpi")) {
+      return;
+    }
+
     if (scale < 1.25f) scale = 1.0f;
     else if (scale < 1.5f) scale = 1.25f;
     else if (scale < 1.75f) scale = 1.5f;