Implement WebVR presentation pausing for VR Shell Menu Mode

third_party/WebKit/Source/modules/vr/VRController.cpp

Index: third_party/WebKit/Source/modules/vr/VRController.cpp
diff --git a/third_party/WebKit/Source/modules/vr/VRController.cpp b/third_party/WebKit/Source/modules/vr/VRController.cpp
index 6fa41fab826dc2cf022b6a5eba2f2ffe11daacca..e75ab1dc964bae288b4e2e9774b711a64ef9b4fb 100644
--- a/third_party/WebKit/Source/modules/vr/VRController.cpp
+++ b/third_party/WebKit/Source/modules/vr/VRController.cpp
@@ -205,6 +205,22 @@ void VRController::OnDisplayDisconnected(unsigned index) {
                              vrDisplay, "disconnect"));
 }
 
+void VRController::OnPausePresent(unsigned index) {
+  VRDisplay* vrDisplay = getDisplayForIndex(index);
+  if (!vrDisplay)
+    return;
+
+  vrDisplay->pausePresent();
+}
+
+void VRController::OnResumePresent(unsigned index) {
+  VRDisplay* vrDisplay = getDisplayForIndex(index);
+  if (!vrDisplay)
+    return;
+
+  vrDisplay->resumePresent();
+}
+
 void VRController::contextDestroyed() {
   // If the document context was destroyed, shut down the client connection
   // and never call the mojo service again.