VR: Disable Overscroll Glow in VrShell

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 "base/metrics/histogram_macros.h"
 #include "chrome/browser/android/vr_shell/ui_elements.h"
 #include "chrome/browser/android/vr_shell/ui_interface.h"
 #include "chrome/browser/android/vr_shell/ui_scene.h"
@@ skipping 170 matching lines @@
 
   gvr::Mat4f identity;
   SetIdentityM(identity);
   webvr_head_pose_.resize(kPoseRingBufferSize, identity);
   webvr_head_pose_valid_.resize(kPoseRingBufferSize, false);
 
   content_input_manager_.reset(new VrInputManager(main_contents_));
   ui_input_manager_.reset(new VrInputManager(ui_contents_));
   weak_content_input_manager_ = content_input_manager_->GetWeakPtr();
   weak_ui_input_manager_ = ui_input_manager_->GetWeakPtr();
+
+  SetShowingOverscrollGlow(false);
 }
 
 void VrShell::UpdateCompositorLayers(JNIEnv* env,
                                      const JavaParamRef<jobject>& obj) {
   content_compositor_->SetLayer(main_contents_);
   ui_compositor_->SetLayer(ui_contents_);
 }
 
 void VrShell::Destroy(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   delete this;
@@ skipping 729 matching lines @@
 void VrShell::OnTriggerEvent(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   // Set a flag to handle this on the render thread at the next frame.
   touch_pending_ = true;
 }
 
 void VrShell::OnPause(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   if (gvr_api_ == nullptr)
     return;
   controller_->OnPause();
   gvr_api_->PauseTracking();
+  SetShowingOverscrollGlow(true);
 
   // exit vr session
   metrics_helper_->SetVRActive(false);
 }
 
 void VrShell::OnResume(JNIEnv* env, const JavaParamRef<jobject>& obj) {
   if (gvr_api_ == nullptr)
     return;
 
   gvr_api_->RefreshViewerProfile();
   gvr_api_->ResumeTracking();
   controller_->OnResume();
+  SetShowingOverscrollGlow(false);
 
   // exit vr session
   metrics_helper_->SetVRActive(true);
 }
 
+void VrShell::SetShowingOverscrollGlow(bool showing_glow) {
+  main_contents_->GetRenderWidgetHostView()->SetShowingOverscrollGlow(
+      showing_glow);
+}
+
 base::WeakPtr<VrShell> VrShell::GetWeakPtr(
     const content::WebContents* web_contents) {
   // Ensure that the WebContents requesting the VrShell instance is the one
   // we created.
   if (g_instance != nullptr && g_instance->ui_contents_ == web_contents)
     return g_instance->weak_ptr_factory_.GetWeakPtr();
   return base::WeakPtr<VrShell>(nullptr);
 }
 
 void VrShell::OnDomContentsLoaded() {
@@ skipping 178 matching lines @@
            jboolean for_web_vr) {
   return reinterpret_cast<intptr_t>(new VrShell(
       env, obj, content::WebContents::FromJavaWebContents(content_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(content_window_android),
       content::WebContents::FromJavaWebContents(ui_web_contents),
       reinterpret_cast<ui::WindowAndroid*>(ui_window_android),
       for_web_vr));
 }
 
 }  // namespace vr_shell