Do not use overlays when VR shell is enabled.

ui/android/display_android_manager.cc

Index: ui/android/display_android_manager.cc
diff --git a/ui/android/display_android_manager.cc b/ui/android/display_android_manager.cc
index 50e5552f3b98e3db54ffb058197d496c51b3e216..2e9807e74eff95fe10acf756397f8dd27d5613de 100644
--- a/ui/android/display_android_manager.cc
+++ b/ui/android/display_android_manager.cc
@@ -81,7 +81,8 @@ void DisplayAndroidManager::UpdateDisplay(
     jfloat dipScale,
     jint rotationDegrees,
     jint bitsPerPixel,
-    jint bitsPerComponent) {
+    jint bitsPerComponent,
+    jboolean isVirtual) {
   gfx::Rect bounds_in_pixels = gfx::Rect(physicalWidth, physicalHeight);
 
   // Physical width and height might be not supported.
@@ -99,6 +100,7 @@ void DisplayAndroidManager::UpdateDisplay(
   display.set_color_depth(bitsPerPixel);
   display.set_depth_per_component(bitsPerComponent);
   display.set_is_monochrome(bitsPerComponent == 0);
+  display.set_is_virtual(static_cast<bool>(isVirtual));
 
   ProcessDisplayChanged(display, sdkDisplayId == primary_display_id_);
 }