[WIP] Fire a theme changed notification when device scan completes

ui/base/material_design/material_design_controller.h

Index: ui/base/material_design/material_design_controller.h
diff --git a/ui/base/material_design/material_design_controller.h b/ui/base/material_design/material_design_controller.h
index fb58f0bf25a4b9dd984442e8f7ae77a87aa11cea..d421d50661f90d76608b5931778ce6299c052589 100644
--- a/ui/base/material_design/material_design_controller.h
+++ b/ui/base/material_design/material_design_controller.h
@@ -31,6 +31,8 @@ class UI_BASE_EXPORT MaterialDesignController {
   // Initializes |mode_|. Must be called before checking |mode_|.
   static void Initialize();
 
+  static bool DeviceListsComplete();
+
   // Get the current Mode that should be used by the system.
   static Mode GetMode();
 
@@ -47,6 +49,9 @@ class UI_BASE_EXPORT MaterialDesignController {
   // reset the state back to a clean state during tear down.
   static bool is_mode_initialized_;
 
+  // Terry: merge with above.
+  static bool mode_initialized_by_switch_;
+
   // The current Mode to be used by the system.
   static Mode mode_;