Do not use overlays when VR shell is enabled.

ui/android/display_android_manager.cc

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/android/display_android_manager.h"
 
 #include <jni.h>
 #include <map>
 
 #include "base/android/jni_android.h"
@@ skipping 63 matching lines @@
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jobject,
     jint sdkDisplayId,
     jint physicalWidth,
     jint physicalHeight,
     jint width,
     jint height,
     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.
   if (bounds_in_pixels.IsEmpty())
     bounds_in_pixels = gfx::Rect(width, height);
 
   const gfx::Rect bounds_in_dip = gfx::Rect(
       gfx::ScaleToCeiledSize(bounds_in_pixels.size(), 1.0f / dipScale));
 
   display::Display display(sdkDisplayId, bounds_in_dip);
   if (!Display::HasForceDeviceScaleFactor())
     display.set_device_scale_factor(dipScale);
 
   display.SetRotationAsDegree(rotationDegrees);
   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_);
 }
 
 void DisplayAndroidManager::RemoveDisplay(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jobject,
     jint sdkDisplayId) {
   display_list().RemoveDisplay(sdkDisplayId);
 }
 
 void DisplayAndroidManager::SetPrimaryDisplayId(
     JNIEnv* env,
     const base::android::JavaParamRef<jobject>& jobject,
     jint sdkDisplayId) {
   primary_display_id_ = sdkDisplayId;
 }
 
 }  // namespace ui