Pause drawing webvr when the App button is pressed

chrome/browser/android/vr_shell/vr_shell_gl.cc

Index: chrome/browser/android/vr_shell/vr_shell_gl.cc
diff --git a/chrome/browser/android/vr_shell/vr_shell_gl.cc b/chrome/browser/android/vr_shell/vr_shell_gl.cc
index 05a6c98fdd8852cc1aff038d50e06eef49145280..410dce5771f93f555d14410639237f5e3ac108ae 100644
--- a/chrome/browser/android/vr_shell/vr_shell_gl.cc
+++ b/chrome/browser/android/vr_shell/vr_shell_gl.cc
@@ -660,8 +660,11 @@ void VrShellGl::HandleControllerAppButtonActivity(
       }
     }
     if (direction == UiInterface::NONE) {
+      content_paused_ = !content_paused_;

[bshe, 2017/04/21 21:08:42]

perhaps rename to content_rendering_enabled_ to make it more readable?

[ymalik, 2017/04/28 00:12:04]

Done.

+      scene_->SetWebVrRenderingEnabled(!content_paused_);
       main_thread_task_runner_->PostTask(
-          FROM_HERE, base::Bind(&VrShell::AppButtonPressed, weak_vr_shell_));
+          FROM_HERE, base::Bind(&VrShell::AppButtonPressed, weak_vr_shell_,
+                                content_paused_));
     }
   }
 }