Refactor usages of Picture In Picture and Multi Window (1/4)

Bug: 27365860
Change-Id: I1590e430a12ceb84cb83da295e0bf7e4378fea96
diff --git a/services/core/java/com/android/server/wm/WindowState.java b/services/core/java/com/android/server/wm/WindowState.java
index 0866c03..57ead8b 100644
--- a/services/core/java/com/android/server/wm/WindowState.java
+++ b/services/core/java/com/android/server/wm/WindowState.java
@@ -642,7 +642,7 @@
         mHaveFrame = true;
 
         final Task task = getTask();
-        final boolean fullscreenTask = !inMultiWindowMode();
+        final boolean fullscreenTask = !isInMultiWindowMode();
         final boolean windowsAreFloating = task != null && task.isFloating();
 
         // If the task has temp inset bounds set, we have to make sure all its windows uses
@@ -2226,7 +2226,7 @@
     }
 
     @Override
-    public boolean inMultiWindowMode() {
+    public boolean isInMultiWindowMode() {
         final Task task = getTask();
         return task != null && !task.isFullscreen();
     }
@@ -2527,7 +2527,7 @@
         final int pw = mContainingFrame.width();
         final int ph = mContainingFrame.height();
         final Task task = getTask();
-        final boolean nonFullscreenTask = inMultiWindowMode();
+        final boolean nonFullscreenTask = isInMultiWindowMode();
         final boolean fitToDisplay = task != null && !task.isFloating() && !layoutInParentFrame();
         float x, y;
         int w,h;