Limit constrained windows to the size of the parent view.

components/web_modal/web_contents_modal_dialog_host.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_HOST_H_
 #define COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_HOST_H_
 
 #include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/point.h"
-#include "ui/gfx/size.h"
+
+namespace gfx {
+class Point;
+class Size;
+}
 
 namespace web_modal {
 
 // Observer to be implemented to update web contents modal dialogs when the host
 // indicates their position needs to be changed.
 class WebContentsModalDialogHostObserver {
  public:
   virtual ~WebContentsModalDialogHostObserver();
 
   virtual void OnPositionRequiresUpdate() = 0;
@@ skipping 11 matching lines @@
 class WebContentsModalDialogHost {
  public:
   virtual ~WebContentsModalDialogHost();
 
   // Returns the view against which the dialog is positioned and parented.
   virtual gfx::NativeView GetHostView() const = 0;
   // Gets the position for the dialog in coordinates relative to the host
   // view.
   virtual gfx::Point GetDialogPosition(const gfx::Size& size) = 0;
 
+  // Returns the maximum dimensions a dialog can have.
+  virtual gfx::Size GetMaximumDialogSize() = 0;
+
   // Add/remove observer.
   virtual void AddObserver(WebContentsModalDialogHostObserver* observer) = 0;
   virtual void RemoveObserver(WebContentsModalDialogHostObserver* observer) = 0;
 
  protected:
   WebContentsModalDialogHost();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(WebContentsModalDialogHost);
 };
 
 }  // namespace web_modal
 
 #endif  // COMPONENTS_WEB_MODAL_WEB_CONTENTS_MODAL_DIALOG_HOST_H_