Fix issue #7585876: When changing the font settings, the movie...

...just keeps attempting to load and doesn't play on the TV

Change-Id: Ifcdc969a037a113224632f907d55f60a168dd05a

Author: Dianne Hackborn

core/java/android/app/Presentation.java

@@ -281,7 +281,7 @@ private void handleDisplayChanged() {
     private boolean isConfigurationStillValid() {
         DisplayMetrics dm = new DisplayMetrics();
         mDisplay.getMetrics(dm);
-        return dm.equals(getResources().getDisplayMetrics());
+        return dm.equalsPhysical(getResources().getDisplayMetrics());
     }
 
     private static Context createPresentationContext(

core/java/android/util/DisplayMetrics.java

@@ -232,19 +232,32 @@ public boolean equals(Object o) {
      * @return True if the display metrics are equal.
      */
     public boolean equals(DisplayMetrics other) {
+        return equalsPhysical(other)
+                && scaledDensity == other.scaledDensity
+                && noncompatScaledDensity == other.noncompatScaledDensity;
+    }
+
+    /**
+     * Returns true if the physical aspects of the two display metrics
+     * are equal.  This ignores the scaled density, which is a logical
+     * attribute based on the current desired font size.
+     *
+     * @param other The display metrics with which to compare.
+     * @return True if the display metrics are equal.
+     * @hide
+     */
+    public boolean equalsPhysical(DisplayMetrics other) {
         return other != null
                 && widthPixels == other.widthPixels
                 && heightPixels == other.heightPixels
                 && density == other.density
                 && densityDpi == other.densityDpi
-                && scaledDensity == other.scaledDensity
                 && xdpi == other.xdpi
                 && ydpi == other.ydpi
                 && noncompatWidthPixels == other.noncompatWidthPixels
                 && noncompatHeightPixels == other.noncompatHeightPixels
                 && noncompatDensity == other.noncompatDensity
                 && noncompatDensityDpi == other.noncompatDensityDpi
-                && noncompatScaledDensity == other.noncompatScaledDensity
                 && noncompatXdpi == other.noncompatXdpi
                 && noncompatYdpi == other.noncompatYdpi;
     }