Add DENSITY_280

Bug 19350604

Change-Id: I94f5162c31f9c8853908d7c4699974c236cc7fe7
diff --git a/api/current.txt b/api/current.txt
index 3e11cda..144f292 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -31435,6 +31435,7 @@
     method public boolean equals(android.util.DisplayMetrics);
     method public void setTo(android.util.DisplayMetrics);
     method public void setToDefaults();
+    field public static final int DENSITY_280 = 280; // 0x118
     field public static final int DENSITY_400 = 400; // 0x190
     field public static final int DENSITY_560 = 560; // 0x230
     field public static final int DENSITY_DEFAULT = 160; // 0xa0
diff --git a/api/system-current.txt b/api/system-current.txt
index d84b1dc..1ec77b1 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -33666,6 +33666,7 @@
     method public boolean equals(android.util.DisplayMetrics);
     method public void setTo(android.util.DisplayMetrics);
     method public void setToDefaults();
+    field public static final int DENSITY_280 = 280; // 0x118
     field public static final int DENSITY_400 = 400; // 0x190
     field public static final int DENSITY_560 = 560; // 0x230
     field public static final int DENSITY_DEFAULT = 160; // 0xa0
diff --git a/core/java/android/util/DisplayMetrics.java b/core/java/android/util/DisplayMetrics.java
index c855e57..d0e5b9e 100644
--- a/core/java/android/util/DisplayMetrics.java
+++ b/core/java/android/util/DisplayMetrics.java
@@ -62,6 +62,13 @@
     public static final int DENSITY_HIGH = 240;
 
     /**
+     * Intermediate density for screens that sit between {@link #DENSITY_HIGH} (240dpi) and
+     * {@link #DENSITY_XHIGH} (320dpi). This is not a density that applications should target,
+     * instead relying on the system to scale their {@link #DENSITY_XHIGH} assets for them.
+     */
+    public static final int DENSITY_280 = 280;
+
+    /**
      * Standard quantized DPI for extra-high-density screens.
      */
     public static final int DENSITY_XHIGH = 320;