Address NewApi warnings in src/ui.

ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java

Index: ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java
diff --git a/ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java b/ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java
index 38569513d08dce233844643a069be3e3919372e6..9a2d2ecc4b593c2bc0d95b242d38daa872a65998 100644
--- a/ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java
+++ b/ui/android/java/src/org/chromium/ui/gfx/DeviceDisplayInfo.java
@@ -4,6 +4,7 @@
 
 package org.chromium.ui.gfx;
 
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.graphics.PixelFormat;
 import android.graphics.Point;
@@ -58,6 +59,7 @@ public class DeviceDisplayInfo {
      * @return Real physical display height in physical pixels.
      */
     @CalledByNative
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
     public int getPhysicalDisplayHeight() {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
             return 0;
@@ -70,6 +72,7 @@ public class DeviceDisplayInfo {
      * @return Real physical display width in physical pixels.
      */
     @CalledByNative
+    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
     public int getPhysicalDisplayWidth() {
         if (Build.VERSION.SDK_INT < Build.VERSION_CODES.JELLY_BEAN_MR1) {
             return 0;