VR: Add a loading indicator to the scene.

chrome/browser/android/vr_shell/vr_gl_thread.cc

Index: chrome/browser/android/vr_shell/vr_gl_thread.cc
diff --git a/chrome/browser/android/vr_shell/vr_gl_thread.cc b/chrome/browser/android/vr_shell/vr_gl_thread.cc
index e2c13799be1ed01f1139e64bb684287ffbf097bd..1108b7f7618f695b6156a7f18963a77f748a0ac5 100644
--- a/chrome/browser/android/vr_shell/vr_gl_thread.cc
+++ b/chrome/browser/android/vr_shell/vr_gl_thread.cc
@@ -118,7 +118,7 @@ void VrGLThread::SetHistoryButtonsEnabled(bool can_go_back,
                             weak_scene_manager_, can_go_forward, can_go_back));
 }
 
-void VrGLThread::SetLoadProgress(double progress) {
+void VrGLThread::SetLoadProgress(float progress) {
   WaitUntilThreadStarted();
   task_runner()->PostTask(FROM_HERE,
                           base::Bind(&UiSceneManager::SetLoadProgress,