VR: System indicator rework.

chrome/browser/android/vr_shell/gl_browser_interface.h

Index: chrome/browser/android/vr_shell/gl_browser_interface.h
diff --git a/chrome/browser/android/vr_shell/gl_browser_interface.h b/chrome/browser/android/vr_shell/gl_browser_interface.h
index cdc9bbd999dcae09a8041c1ba28b9e427b9cac52..aeec32e440d937780e7b10ceeb660487ee45a459 100644
--- a/chrome/browser/android/vr_shell/gl_browser_interface.h
+++ b/chrome/browser/android/vr_shell/gl_browser_interface.h
@@ -19,8 +19,9 @@ class WebInputEvent;
 
 namespace vr_shell {
 
-// An interface for the GL thread to communicate with VrShell. Many of the
-// functions in this interface are proxies to methods on VrShell.
+// An interface for the GL thread to communicate with the rest of the system
+// (UI, VrShell, etc). Many of the functions in this interface are proxies to
+// methods on VrShell.
 class GlBrowserInterface {
  public:
   virtual ~GlBrowserInterface() = default;
@@ -38,6 +39,7 @@ class GlBrowserInterface {
       device::mojom::VRDisplayInfoPtr* info) = 0;
   virtual void OnContentPaused(bool enabled) = 0;
   virtual void ToggleCardboardGamepad(bool enabled) = 0;
+  virtual void OnGLInitialized() = 0;
 };
 
 }  // namespace vr_shell