experimental.popup support for tab-content-viewed extensions

chrome/browser/extensions/extension_popup_api.h

 // Copyright (c) 2009 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_POPUP_API_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_POPUP_API_H_
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/common/notification_registrar.h"
 
+namespace gfx {
+class Point;
+}  // namespace gfx
+
 class Profile;
 class ExtensionPopup;
 
 // This extension function shows a pop-up extension view.  It is asynchronous
 // because the callback must be invoked only after the associated render
 // process/view has been created and fully initialized.
 class PopupShowFunction : public AsyncExtensionFunction,
                           public NotificationObserver {
  public:
   PopupShowFunction();
 
   virtual void Run();
   virtual bool RunImpl();
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.popup.show")
 
  private:
+  // Computes the screen-space position of the frame-relative point in the
+  // extension view that is requesting to display a popup.
+  bool ConvertHostPointToScreen(gfx::Point* point);
+
   // NotificationObserver methods.
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
   NotificationRegistrar registrar_;
 
 #if defined(TOOLKIT_VIEWS)
   // The pop-up view created by this function, saved for access during
   // event notification.  The pop-up is not owned by the PopupShowFunction
   // instance.
   ExtensionPopup* popup_;
 #endif
 };
 
 // Event router class for events related to the chrome.popup.* set of APIs.
 class PopupEventRouter {
  public:
   static void OnPopupClosed(Profile* profile,
                             int routing_id);
  private:
   DISALLOW_COPY_AND_ASSIGN(PopupEventRouter);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_POPUP_API_H_