Neuter alternate methods of entering fullscreen mode when in metro snap (via extension and via JS f…

ui/views/widget/native_widget_win.h

 // Copyright (c) 2012 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 UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 #define UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_
 #pragma once
 
 #include <atlbase.h>
 #include <atlapp.h>
@@ skipping 524 matching lines @@
   // Notifies any owned windows that we're closing.
   void NotifyOwnedWindowsParentClosing();
 
   // Overridden from internal::InputMethodDelegate
   virtual void DispatchKeyEventPostIME(const KeyEvent& key) OVERRIDE;
 
   // Common implementation of fullscreen-related code. This method handles
   // changing from windowed mode to a display mode (dubbed fullscreen mode)
   // where the window occupies a fixed portion (possibly 100%) of the screen.
   // |fullscreen| specifies whether we are entering or leaving fullscreen mode.
-  // |window_rect| contains sizing information that describes the portion of the
-  //               screen to be occupied. |window_rect| may be a rect of width
-  //               0, which indicates that sizing should be skipped when
-  //               entering fullscreen mode and previously-stored size should
-  //               be used when exiting fullscreen mode.
-  void SetFullscreenInternal(bool fullscreen,
-                             const gfx::Rect& window_rect);
+  // |for_metro| specifies whether we are doing this at the behest of a metro
+  //             snap transition.
+  void SetFullscreenInternal(bool fullscreen, bool for_metro);
 
   // A delegate implementation that handles events received here.
   // See class documentation for Widget in widget.h for a note about ownership.
   internal::NativeWidgetDelegate* delegate_;
 
   // The following factory is used for calls to close the NativeWidgetWin
   // instance.
   base::WeakPtrFactory<NativeWidgetWin> close_widget_factory_;
 
   // The flags currently being used with TrackMouseEvent to track mouse
@@ skipping 122 matching lines @@
 
   // The set of touch devices currently down.
   TouchIDs touch_ids_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeWidgetWin);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_NATIVE_WIDGET_WIN_H_