Answer call with hardware HOME button (2/2)

preparation to winter time

Conflicts:
	policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
Change-Id: Ic11449acf87c6b4d932142b74158af7441658b3d

	modified:   core/java/android/provider/Settings.java
	deleted:    policy/src/com/android/internal/policy/impl/PhoneWindowManager.java
	modified:   services/core/java/com/android/server/policy/PhoneWindowManager.java

core/java/android/provider/Settings.java

@@ -5915,6 +5915,36 @@ public static boolean putFloatForUser(ContentResolver cr, String name, float val
          */
         public static final String DOZE_ENABLED = "doze_enabled";
 
+        /**
+         * What happens when the user presses the Home button when the
+         * phone is ringing.<br/>
+         * <b>Values:</b><br/>
+         * 1 - Nothing happens. (Default behavior)<br/>
+         * 2 - The Home button answer the current call.<br/>
+         *
+         * @hide
+         */
+        public static final String RING_HOME_BUTTON_BEHAVIOR = "ring_home_button_behavior";
+
+        /**
+         * RING_HOME_BUTTON_BEHAVIOR value for "do nothing".
+         * @hide
+         */
+        public static final int RING_HOME_BUTTON_BEHAVIOR_DO_NOTHING = 0x1;
+
+        /**
+         * RING_HOME_BUTTON_BEHAVIOR value for "answer".
+         * @hide
+         */
+        public static final int RING_HOME_BUTTON_BEHAVIOR_ANSWER = 0x2;
+
+        /**
+         * RING_HOME_BUTTON_BEHAVIOR default value.
+         * @hide
+         */
+        public static final int RING_HOME_BUTTON_BEHAVIOR_DEFAULT =
+                RING_HOME_BUTTON_BEHAVIOR_DO_NOTHING;
+
         /**
          * The current night mode that has been selected by the user.  Owned
          * and controlled by UiModeManagerService.  Constants are as per