Pause drawing webvr when the App button is pressed

chrome/browser/android/vr_shell/vr_gl_thread.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_gl_thread.h"
 
 #include <utility>
 
+#include "chrome/browser/android/vr_shell/ui_interface.h"
 #include "chrome/browser/android/vr_shell/ui_scene.h"
 #include "chrome/browser/android/vr_shell/ui_scene_manager.h"
 #include "chrome/browser/android/vr_shell/vr_input_manager.h"
 #include "chrome/browser/android/vr_shell/vr_shell.h"
 #include "chrome/browser/android/vr_shell/vr_shell_gl.h"
 
 namespace vr_shell {
 
+void RunDisplayInfoCallback(

[cjgrant, 2017/05/02 18:07:06]

This will need a rebase with Michael's change I think?

[ymalik, 2017/05/02 20:28:40]

Yes. Rebased.

+    const base::Callback<void(device::mojom::VRDisplayInfoPtr)>& callback,
+    device::mojom::VRDisplayInfoPtr info) {
+  callback.Run(std::move(info));
+}
+
 VrGLThread::VrGLThread(
     const base::WeakPtr<VrShell>& weak_vr_shell,
     scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner,
     gvr_context* gvr_api,
     bool initially_web_vr,
     bool reprojected_rendering)
     : base::Thread("VrShellGL"),
       weak_vr_shell_(weak_vr_shell),
       main_thread_task_runner_(std::move(main_thread_task_runner)),
       gvr_api_(gvr_api),
       initially_web_vr_(initially_web_vr),
-      reprojected_rendering_(reprojected_rendering) {}
+      reprojected_rendering_(reprojected_rendering),
+      weak_ptr_factory_(this) {}
 
 VrGLThread::~VrGLThread() {
   Stop();
 }
 
 void VrGLThread::Init() {
   scene_ = base::MakeUnique<UiScene>();
   vr_shell_gl_ = base::MakeUnique<VrShellGl>(
-      std::move(weak_vr_shell_), std::move(main_thread_task_runner_), gvr_api_,
-      initially_web_vr_, reprojected_rendering_, scene_.get());
-  scene_manager_ = base::MakeUnique<UiSceneManager>(scene_.get());
+      weak_ptr_factory_.GetWeakPtr(), gvr_api_, initially_web_vr_,
+      reprojected_rendering_, scene_.get());
+  scene_manager_ = base::MakeUnique<UiSceneManager>(
+      weak_ptr_factory_.GetWeakPtr(), scene_.get());
 
   weak_vr_shell_gl_ = vr_shell_gl_->GetWeakPtr();
   weak_scene_manager_ = scene_manager_->GetWeakPtr();
   vr_shell_gl_->Initialize();
 }
 
+void VrGLThread::ContentSurfaceChanged(jobject surface) {

[cjgrant, 2017/05/02 18:07:06]

This is cool.  Thanks for rejigging this to keep the binding stuff centralized.

[ymalik, 2017/05/02 20:28:40]

Acknowledged.

+  main_thread_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&VrShell::ContentSurfaceChanged, weak_vr_shell_, surface));
+}
+
+void VrGLThread::GvrDelegateReady() {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&VrShell::GvrDelegateReady, weak_vr_shell_));
+}
+
+void VrGLThread::UpdateGamepadData(device::GvrGamepadData pad) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&VrShell::UpdateGamepadData, weak_vr_shell_, pad));
+}
+
+void VrGLThread::AppButtonGesturePerformed(UiInterface::Direction direction) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&VrShell::AppButtonGesturePerformed, weak_vr_shell_,
+                            direction));
+}
+
+void VrGLThread::AppButtonPressed() {
+  weak_vr_shell_gl_->GetTaskRunner()->PostTask(
+      FROM_HERE,
+      base::Bind(&UiSceneManager::AppButtonPressed, weak_scene_manager_));
+}
+
+void VrGLThread::ProcessContentGesture(
+    std::unique_ptr<blink::WebInputEvent> event) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&VrShell::ProcessContentGesture, weak_vr_shell_,
+                            base::Passed(std::move(event))));
+}
+
+void VrGLThread::ForceExitVr() {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE, base::Bind(&VrShell::ForceExitVr, weak_vr_shell_));
+}
+
+void VrGLThread::RunVRDisplayInfoCallback(
+    const base::Callback<void(device::mojom::VRDisplayInfoPtr)>& callback,
+    device::mojom::VRDisplayInfoPtr* info) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&RunDisplayInfoCallback, callback, base::Passed(info)));
+}
+
+void VrGLThread::OnContentPaused(bool enabled) {
+  main_thread_task_runner_->PostTask(
+      FROM_HERE,
+      base::Bind(&VrShell::OnContentPaused, weak_vr_shell_, enabled));
+}
+
 void VrGLThread::CleanUp() {
   scene_manager_.reset();
   vr_shell_gl_.reset();
   scene_.reset();
 }
 
 }  // namespace vr_shell