Make theme change notifications auto-propagate through the view hierarchy, in...

views/view.h

Index: views/view.h
===================================================================
--- views/view.h	(revision 53545)
+++ views/view.h	(working copy)
@@ -975,15 +975,15 @@
 
   // Called when the UI theme has changed, overriding allows individual Views to
   // do special cleanup and processing (such as dropping resource caches).
-  // Subclasses that override this method must call the base class
-  // implementation to ensure child views are processed.
-  // Can only be called by subclasses. To dispatch a theme changed notification,
-  // call this method on the RootView.
-  virtual void ThemeChanged();
+  // To dispatch a theme changed notification, call
+  // RootView::NotifyThemeChanged().
+  virtual void OnThemeChanged() { }
 
   // Called when the locale has changed, overriding allows individual Views to
   // update locale-dependent strings.
-  virtual void LocaleChanged() { }
+  // To dispatch a locale changed notification, call
+  // RootView::NotifyLocaleChanged().
+  virtual void OnLocaleChanged() { }
 
 #ifndef NDEBUG
   // Returns true if the View is currently processing a paint.
@@ -1137,10 +1137,14 @@
     gfx::Point start_pt;
   };
 
-  // Propagates locale changed notification from the root view downside.
-  // Invokes LocaleChanged() for every view in the hierarchy.
-  virtual void NotifyLocaleChanged();
+  // Used to propagate theme changed notifications from the root view to all
+  // views in the hierarchy.
+  virtual void PropagateThemeChanged();
 
+  // Used to propagate locale changed notifications from the root view to all
+  // views in the hierarchy.
+  virtual void PropagateLocaleChanged();
+
   // RootView invokes these. These in turn invoke the appropriate OnMouseXXX
   // method. If a drag is detected, DoDrag is invoked.
   bool ProcessMousePressed(const MouseEvent& e, DragInfo* drop_info);