Add multi-display support to FloatingToolbar.

DecorView has no support for multi-display (bug 65172902).
Until that is done, the easy fix for displaying cut, copy, paste
on non-default display is to modify FloatingToolbar.
FloatingToolbar uses context of Default display. Changed it
to use context of the window (which makes it multi-display
compatible).

Fixes: 64837794
Test: Manual using AAe's KitchenSink test app
bit FrameworksCoreTests:android.widget.TextViewActivityTest
bit CtsWidgetTestCases:android.widget.cts.TextViewTest
Change-Id: I513f1aac1c0d22355c996247e3bf56c6d812348f
diff --git a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
index 03f42a6..d7f11f7 100644
--- a/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
+++ b/packages/SystemUI/src/com/android/systemui/statusbar/phone/StatusBarWindowView.java
@@ -422,7 +422,7 @@
             mFloatingActionMode.finish();
         }
         cleanupFloatingActionModeViews();
-        mFloatingToolbar = new FloatingToolbar(mContext, mFakeWindow);
+        mFloatingToolbar = new FloatingToolbar(mFakeWindow);
         final FloatingActionMode mode =
                 new FloatingActionMode(mContext, callback, originatingView, mFloatingToolbar);
         mFloatingActionModeOriginatingView = originatingView;