Set material hybrid by default on ChromeOS touch devices

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 9ef61c0c4e546250afeb927a3f1c9a4c39c5673c..2bc3915750fc6ef1b58a82647783157804cb6c86 100644
--- a/ui/base/material_design/material_design_controller.h
+++ b/ui/base/material_design/material_design_controller.h
@@ -34,9 +34,6 @@ class UI_BASE_EXPORT MaterialDesignController {
   // Returns true if the current mode is a material design variant.
   static bool IsModeMaterial();
 
-  // Returns the per-platform default material design variant.
-  static Mode DefaultMode();
-
  private:
   friend class test::MaterialDesignControllerTestAPI;
 
@@ -62,6 +59,11 @@ class UI_BASE_EXPORT MaterialDesignController {
   // used by tests to directly set the mode.
   static void SetMode(Mode mode);
 
+  // Returns the per-platform default material design variant.
+  static Mode DefaultMode();
+
+  static bool UseMaterialOrMaterialHybridByDefault();
+
   DISALLOW_COPY_AND_ASSIGN(MaterialDesignController);
 };