Removes deprecated uses of Display#getRealSize in Gesture Nav Edu.

Fix: 227307214
Test: Manually went through the gesture nav tutorials.
Change-Id: I0c6fec12915bacec7933a4beb1a6aa68dc49dd67

quickstep/src/com/android/quickstep/interaction/EdgeBackGestureHandler.java

@@ -31,6 +31,7 @@ import androidx.annotation.Nullable;
 
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.Utilities;
+import com.android.launcher3.util.DisplayController;
 
 /**
  * Utility class to handle edge swipes for back gestures.
@@ -115,10 +116,9 @@ public class EdgeBackGestureHandler implements OnTouchListener {
             // Add a nav bar panel window.
             mEdgeBackPanel = new EdgeBackGesturePanel(mContext, parent, createLayoutParams());
             mEdgeBackPanel.setBackCallback(mBackCallback);
-            if (mContext.getDisplay() != null) {
-                mContext.getDisplay().getRealSize(mDisplaySize);
-                mEdgeBackPanel.setDisplaySize(mDisplaySize);
-            }
+            Point currentSize = DisplayController.INSTANCE.get(mContext).getInfo().currentSize;
+            mDisplaySize.set(currentSize.x, currentSize.y);
+            mEdgeBackPanel.setDisplaySize(mDisplaySize);
         }
     }
 

quickstep/src/com/android/quickstep/interaction/NavBarGestureHandler.java

@@ -37,7 +37,6 @@ import android.os.SystemClock;
 import android.view.Display;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
-import android.view.Surface;
 import android.view.View;
 import android.view.View.OnTouchListener;
 import android.view.ViewConfiguration;
@@ -47,6 +46,7 @@ import androidx.annotation.Nullable;
 import com.android.launcher3.R;
 import com.android.launcher3.ResourceUtils;
 import com.android.launcher3.anim.Interpolators;
+import com.android.launcher3.util.DisplayController;
 import com.android.launcher3.util.DisplayController.NavigationMode;
 import com.android.quickstep.util.MotionPauseDetector;
 import com.android.quickstep.util.NavBarPosition;
@@ -92,13 +92,10 @@ public class NavBarGestureHandler implements OnTouchListener,
     NavBarGestureHandler(Context context) {
         mContext = context;
         final Display display = mContext.getDisplay();
-        final int displayRotation;
-        if (display == null) {
-            displayRotation = Surface.ROTATION_0;
-        } else {
-            displayRotation = display.getRotation();
-            display.getRealSize(mDisplaySize);
-        }
+        DisplayController.Info displayInfo = DisplayController.INSTANCE.get(mContext).getInfo();
+        final int displayRotation = displayInfo.rotation;
+        Point currentSize = displayInfo.currentSize;
+        mDisplaySize.set(currentSize.x, currentSize.y);
         mSwipeUpTouchTracker =
                 new TriggerSwipeUpTouchTracker(context, true /*disableHorizontalSwipe*/,
                         new NavBarPosition(NavigationMode.NO_BUTTON, displayRotation),