VR: Remove unnecessary transparency support from VR compositor.

chrome/browser/android/vr_shell/vr_shell.cc

 // Copyright 2016 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 "chrome/browser/android/vr_shell/vr_shell.h"
 
 #include <android/native_window_jni.h>
 
 #include <string>
 #include <utility>
@@ skipping 70 matching lines @@
 
 VrShell::VrShell(JNIEnv* env,
                  jobject obj,
                  ui::WindowAndroid* window,
                  bool for_web_vr,
                  VrShellDelegate* delegate,
                  gvr_context* gvr_api,
                  bool reprojected_rendering)
     : vr_shell_enabled_(base::FeatureList::IsEnabled(features::kVrShell)),
       window_(window),
-      compositor_(base::MakeUnique<VrCompositor>(window_, false)),
+      compositor_(base::MakeUnique<VrCompositor>(window_)),
       delegate_provider_(delegate),
       main_thread_task_runner_(base::ThreadTaskRunnerHandle::Get()),
       reprojected_rendering_(reprojected_rendering),
       gvr_api_(gvr_api),
       weak_ptr_factory_(this) {
   DVLOG(1) << __FUNCTION__ << "=" << this;
   DCHECK(g_instance == nullptr);
   g_instance = this;
   j_vr_shell_.Reset(env, obj);
 
@@ skipping 463 matching lines @@
            jboolean for_web_vr,
            jlong gvr_api,
            jboolean reprojected_rendering) {
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, reinterpret_cast<ui::WindowAndroid*>(window_android),
       for_web_vr, VrShellDelegate::GetNativeVrShellDelegate(env, delegate),
       reinterpret_cast<gvr_context*>(gvr_api), reprojected_rendering));
 }
 
 }  // namespace vr_shell