Rework the way Widget::Init works:

views/widget/widget.cc

Index: views/widget/widget.cc
===================================================================
--- views/widget/widget.cc	(revision 83020)
+++ views/widget/widget.cc	(working copy)
@@ -28,6 +28,8 @@
       delete_on_destroy(true),
       mirror_origin_in_rtl(false),
       has_dropshadow(false),
+      parent(NULL),
+      parent_widget(NULL),
       native_widget(NULL) {
 }
 
@@ -41,12 +43,19 @@
       delete_on_destroy(true),
       mirror_origin_in_rtl(false),
       has_dropshadow(false),
+      parent(NULL),
+      parent_widget(NULL),
       native_widget(NULL) {
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // Widget, public:
 
+// static
+Widget::CreateParams Widget::WindowCreateParams() {
+  return CreateParams(CreateParams::TYPE_WINDOW);
+}
+
 Widget::Widget()
     : is_mouse_button_pressed_(false),
       last_mouse_event_was_move_(false),
@@ -58,19 +67,13 @@
 Widget::~Widget() {
 }
 
-void Widget::SetCreateParams(const CreateParams& params) {
-  native_widget_->SetCreateParams(params);
-}
-
-// Unconverted methods (see header) --------------------------------------------
-
-void Widget::Init(gfx::NativeView parent, const gfx::Rect& bounds) {
+void Widget::Init(const CreateParams& params) {
   GetRootView();
   default_theme_provider_.reset(new DefaultThemeProvider);
+  native_widget_->InitNativeWidget(params);
 }
 
-void Widget::InitWithWidget(Widget* parent, const gfx::Rect& bounds) {
-}
+// Unconverted methods (see header) --------------------------------------------
 
 gfx::NativeView Widget::GetNativeView() const {
   return NULL;