Move ash/wm's DialogFrameView to ui/views/window; etc.

ui/views/window/dialog_delegate.h

Index: ui/views/window/dialog_delegate.h
diff --git a/ui/views/window/dialog_delegate.h b/ui/views/window/dialog_delegate.h
index 59319c0b85c8925bd5f5d650e2a840975a9f2e78..67eb954b34678c3e21ddc76e2f8fd66fd51575f0 100644
--- a/ui/views/window/dialog_delegate.h
+++ b/ui/views/window/dialog_delegate.h
@@ -14,7 +14,6 @@
 namespace views {
 
 class DialogClientView;
-class View;
 
 ///////////////////////////////////////////////////////////////////////////////
 //
@@ -28,10 +27,11 @@ class View;
 ///////////////////////////////////////////////////////////////////////////////
 class VIEWS_EXPORT DialogDelegate : public WidgetDelegate {
  public:
-  virtual DialogDelegate* AsDialogDelegate() OVERRIDE;
-
   virtual ~DialogDelegate();
 
+  // Returns whether to use the new dialog style.
+  static bool UseNewStyle();
+
   // Returns a mask specifying which of the available DialogButtons are visible
   // for the dialog. Note: If an OK button is provided, you should provide a
   // CANCEL button. A dialog box with just an OK button is frowned upon and
@@ -58,10 +58,6 @@ class VIEWS_EXPORT DialogDelegate : public WidgetDelegate {
   // Returns whether the specified dialog button is visible.
   virtual bool IsDialogButtonVisible(ui::DialogButton button) const;
 
-  // Returns whether to use chrome style for the button strip (like WebUI). If
-  // false, native style padding is used.
-  virtual bool UseChromeStyle() const;
-
   // Returns whether accelerators are enabled on the button. This is invoked
   // when an accelerator is pressed, not at construction time. This
   // returns true.
@@ -95,9 +91,11 @@ class VIEWS_EXPORT DialogDelegate : public WidgetDelegate {
   virtual bool Accept(bool window_closing);
   virtual bool Accept();
 
-  // Overridden from WindowDelegate:
+  // Overridden from WidgetDelegate:
   virtual View* GetInitiallyFocusedView() OVERRIDE;
+  virtual DialogDelegate* AsDialogDelegate() OVERRIDE;
   virtual ClientView* CreateClientView(Widget* widget) OVERRIDE;
+  virtual NonClientFrameView* CreateNonClientFrameView(Widget* widget) OVERRIDE;
 
   // Called when the window has been closed.
   virtual void OnClose() {}
@@ -124,6 +122,7 @@ class VIEWS_EXPORT DialogDelegateView : public DialogDelegate,
   // Overridden from DialogDelegate:
   virtual Widget* GetWidget() OVERRIDE;
   virtual const Widget* GetWidget() const OVERRIDE;
+  virtual View* GetContentsView() OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DialogDelegateView);