3 files changed, 36 insertions, 0 deletions
diff --git a/views/controls/button/checkbox.cc b/views/controls/button/checkbox.cc
index 8783bcf..af6a7b4 100644
--- a/views/controls/button/checkbox.cc
+++ b/views/controls/button/checkbox.cc
@@ -53,6 +53,9 @@ int Checkbox::GetTextIndent() {
 // Checkbox, View overrides:
 
 gfx::Size Checkbox::GetPreferredSize() {
+  if (!native_wrapper_)
+    return gfx::Size();
+
   gfx::Size prefsize = native_wrapper_->GetView()->GetPreferredSize();
   prefsize.set_width(
       prefsize.width() + kCheckboxLabelSpacing +
diff --git a/views/controls/button/native_button_gtk.cc b/views/controls/button/native_button_gtk.cc
index e140b21..858fdcd 100644
--- a/views/controls/button/native_button_gtk.cc
+++ b/views/controls/button/native_button_gtk.cc
@@ -86,10 +86,31 @@ void NativeButtonGtk::NativeControlCreated(GtkWidget* widget) {
   UpdateDefault();
 }
 
+NativeCheckboxGtk::NativeCheckboxGtk(Checkbox* checkbox)
+    : NativeButtonGtk(checkbox) {
+}
+
+void NativeCheckboxGtk::CreateNativeControl() {
+  GtkWidget* widget = gtk_check_button_new();
+  NativeControlCreated(widget);
+}
+
+// static
+int NativeButtonWrapper::GetFixedWidth() {
+  // TODO(brettw) implement this properly.
+  return 10;
+}
+
 // static
 NativeButtonWrapper* NativeButtonWrapper::CreateNativeButtonWrapper(
     NativeButton* native_button) {
   return new NativeButtonGtk(native_button);
 }
 
+// static
+NativeButtonWrapper* NativeButtonWrapper::CreateCheckboxWrapper(
+    Checkbox* checkbox) {
+  return new NativeCheckboxGtk(checkbox);
+}
+
 }  // namespace views
diff --git a/views/controls/button/native_button_gtk.h b/views/controls/button/native_button_gtk.h
index e76a703..d526dcd 100644
--- a/views/controls/button/native_button_gtk.h
+++ b/views/controls/button/native_button_gtk.h
@@ -41,6 +41,18 @@ class NativeButtonGtk : public NativeControlGtk, public NativeButtonWrapper {
   DISALLOW_COPY_AND_ASSIGN(NativeButtonGtk);
 };
 
+class NativeCheckboxGtk : public NativeButtonGtk {
+ public:
+  explicit NativeCheckboxGtk(Checkbox* checkbox);
+
+ private:
+  virtual void CreateNativeControl();
+
+  // Returns true if this button is actually a checkbox or radio button.
+  virtual bool IsCheckbox() const { return true; }
+  DISALLOW_COPY_AND_ASSIGN(NativeCheckboxGtk);
+};
+
 }  // namespace views
 
 #endif  // #ifndef VIEWS_CONTROLS_BUTTON_NATIVE_BUTTON_GTK_H_