make sysui comments gender neutral

Change-Id: Ie494815e0b651ff120eda439a8fc1ad3461ce66c

packages/SystemUI/src/com/android/systemui/statusbar/phone/PanelView.java

@@ -226,7 +226,7 @@ public abstract class PanelView extends FrameLayout {
          * We capture touch events here and update the expand height here in case according to
          * the users fingers. This also handles multi-touch.
          *
-         * If the user just clicks shortly, we give him a quick peek of the shade.
+         * If the user just clicks shortly, we show a quick peek of the shade.
          *
          * Flinging is also enabled in order to open or close the shade.
          */
@@ -442,7 +442,7 @@ public abstract class PanelView extends FrameLayout {
         }
 
         /*
-         * If the user drags anywhere inside the panel we intercept it if he moves his finger
+         * If the user drags anywhere inside the panel we intercept it if the movement is
          * upwards. This allows closing the shade from anywhere inside the panel.
          *
          * We only do this if the current content is scrolled to the bottom,

packages/SystemUI/src/com/android/systemui/statusbar/stack/NotificationStackScrollLayout.java

@@ -2077,7 +2077,7 @@ public class NotificationStackScrollLayout extends ViewGroup
 
         /*
         * Shortcut the most recurring case: the user is in the dragging
-        * state and he is moving his finger.  We want to intercept this
+        * state and is moving their finger.  We want to intercept this
         * motion.
         */
         final int action = ev.getAction();
@@ -2089,7 +2089,7 @@ public class NotificationStackScrollLayout extends ViewGroup
             case MotionEvent.ACTION_MOVE: {
                 /*
                  * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
-                 * whether the user has moved far enough from his original down touch.
+                 * whether the user has moved far enough from the original down touch.
                  */
 
                 /*

packages/SystemUI/src/com/android/systemui/usb/UsbStorageActivity.java

@@ -51,7 +51,7 @@ import com.android.internal.R;
 import java.util.List;
 
 /**
- * This activity is shown to the user for him/her to enable USB mass storage
+ * This activity is shown to the user to allow enabling of USB mass storage
  * on-demand (that is, when the USB cable is connected). It uses the alert
  * dialog style. It will be launched from a notification.
  */