Added views::ViewModelT<T>, a type-safe template version of ViewModel.

ui/views/view_model_utils.h

Index: ui/views/view_model_utils.h
diff --git a/ui/views/view_model_utils.h b/ui/views/view_model_utils.h
index 2d7eb89e810897854772e8f1c9f70ee8063caa69..a01fecb5df5f00f41bba2a7204ec35d7bf8f18b5 100644
--- a/ui/views/view_model_utils.h
+++ b/ui/views/view_model_utils.h
@@ -11,7 +11,7 @@
 namespace views {
 
 class View;
-class ViewModel;
+class ViewModelBase;
 
 class VIEWS_EXPORT ViewModelUtils {
  public:
@@ -21,13 +21,13 @@ class VIEWS_EXPORT ViewModelUtils {
   };
 
   // Sets the bounds of each view to its ideal bounds.
-  static void SetViewBoundsToIdealBounds(const ViewModel& model);
+  static void SetViewBoundsToIdealBounds(const ViewModelBase& model);
 
   // Returns true if the Views in |model| are at their ideal bounds.
-  static bool IsAtIdealBounds(const ViewModel& model);
+  static bool IsAtIdealBounds(const ViewModelBase& model);
 
   // Returns the index to move |view| to based on a coordinate of |x| and |y|.
-  static int DetermineMoveIndex(const ViewModel& model,
+  static int DetermineMoveIndex(const ViewModelBase& model,
                                 View* view,
                                 Alignment alignment,
                                 int x,