Don't change density when forcing screen size

Test: m services
Bug: 159333536
Bug: 156100799
Change-Id: Ib4038f506cdddc88bc86cebbd1fa7992480e66bd
diff --git a/services/core/java/com/android/server/wm/DisplayContent.java b/services/core/java/com/android/server/wm/DisplayContent.java
index b0947cf..3670c11 100644
--- a/services/core/java/com/android/server/wm/DisplayContent.java
+++ b/services/core/java/com/android/server/wm/DisplayContent.java
@@ -2485,7 +2485,7 @@
         }
 
         Slog.i(TAG_WM, "Using new display size: " + width + "x" + height);
-        updateBaseDisplayMetrics(width, height, width * mBaseDisplayDensity / mBaseDisplayWidth);
+        updateBaseDisplayMetrics(width, height, mBaseDisplayDensity);
         reconfigureDisplayLocked();
 
         if (!mIsSizeForced) {