7 files changed, 21 insertions, 0 deletions
diff --git a/views/controls/button/button.h b/views/controls/button/button.h
index 2319990..dfd239c 100644
--- a/views/controls/button/button.h
+++ b/views/controls/button/button.h
@@ -18,6 +18,9 @@ class Event;
 class ButtonListener {
  public:
   virtual void ButtonPressed(Button* sender, const views::Event& event) = 0;
+
+ protected:
+  virtual ~ButtonListener() {}
 };
 
 // A View representing a button. Depending on the specific type, the button
diff --git a/views/controls/button/native_button_wrapper.h b/views/controls/button/native_button_wrapper.h
index ac93acc..e8cbd99 100644
--- a/views/controls/button/native_button_wrapper.h
+++ b/views/controls/button/native_button_wrapper.h
@@ -67,6 +67,9 @@ class NativeButtonWrapper {
   static NativeButtonWrapper* CreateCheckboxWrapper(Checkbox* checkbox);
   static NativeButtonWrapper* CreateRadioButtonWrapper(
       RadioButton* radio_button);
+
+ protected:
+  virtual ~NativeButtonWrapper() {}
 };
 
 }  // namespace views
diff --git a/views/controls/combobox/native_combobox_wrapper.h b/views/controls/combobox/native_combobox_wrapper.h
index 0313857..61a3075 100644
--- a/views/controls/combobox/native_combobox_wrapper.h
+++ b/views/controls/combobox/native_combobox_wrapper.h
@@ -47,6 +47,9 @@ class NativeComboboxWrapper {
   virtual gfx::NativeView GetTestingHandle() const = 0;
 
   static NativeComboboxWrapper* CreateWrapper(Combobox* combobox);
+
+ protected:
+  virtual ~NativeComboboxWrapper() {}
 };
 
 }  // namespace views
diff --git a/views/controls/link.h b/views/controls/link.h
index ecf415b..fd6b39f 100644
--- a/views/controls/link.h
+++ b/views/controls/link.h
@@ -23,6 +23,9 @@ class Link;
 class LinkController {
  public:
   virtual void LinkActivated(Link* source, int event_flags) = 0;
+
+ protected:
+  virtual ~LinkController() {}
 };
 
 ////////////////////////////////////////////////////////////////////////////////
diff --git a/views/controls/listbox/native_listbox_wrapper.h b/views/controls/listbox/native_listbox_wrapper.h
index b1f3a65..19bd6ab 100644
--- a/views/controls/listbox/native_listbox_wrapper.h
+++ b/views/controls/listbox/native_listbox_wrapper.h
@@ -33,6 +33,9 @@ class NativeListboxWrapper {
       Listbox* listbox,
       const std::vector<string16>& strings,
       Listbox::Listener* listener);
+
+ protected:
+  virtual ~NativeListboxWrapper() {}
 };
 
 }  // namespace views
diff --git a/views/controls/menu/view_menu_delegate.h b/views/controls/menu/view_menu_delegate.h
index 3b9a8fe1..b3e4079 100644
--- a/views/controls/menu/view_menu_delegate.h
+++ b/views/controls/menu/view_menu_delegate.h
@@ -30,6 +30,9 @@ class ViewMenuDelegate {
   // Create and show a menu at the specified position. Source is the view the
   // ViewMenuDelegate was set on.
   virtual void RunMenu(View* source, const gfx::Point& pt) = 0;
+
+ protected:
+  virtual ~ViewMenuDelegate() {}
 };
 
 }  // namespace views
diff --git a/views/controls/table/native_table_wrapper.h b/views/controls/table/native_table_wrapper.h
index 4fe1181..a100572 100644
--- a/views/controls/table/native_table_wrapper.h
+++ b/views/controls/table/native_table_wrapper.h
@@ -70,6 +70,9 @@ class NativeTableWrapper {
 
   // Creates an appropriate NativeButtonWrapper for the platform.
   static NativeTableWrapper* CreateNativeWrapper(TableView2* table);
+
+ protected:
+  virtual ~NativeTableWrapper() {}
 };
 
 }  // namespace views