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..2f28838814672d8de60d3ebfadc0e51b3b3a7483 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::OnDisplayBlur(unsigned index) {
+  VRDisplay* vrDisplay = getDisplayForIndex(index);
+  if (!vrDisplay)
+    return;
+
+  vrDisplay->onDisplayBlur();
+}
+
+void VRController::OnDisplayFocus(unsigned index) {
+  VRDisplay* vrDisplay = getDisplayForIndex(index);
+  if (!vrDisplay)
+    return;
+
+  vrDisplay->onDisplayFocus();
+}
+
 void VRController::contextDestroyed() {
   // If the document context was destroyed, shut down the client connection
   // and never call the mojo service again.