Prevent a window from being put into fullscreen upon startup on desktop Linux

ui/views/widget/desktop_aura/desktop_window_tree_host_x11.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_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
 #define UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_
 
 #include <X11/extensions/shape.h>
 #include <X11/Xlib.h>
 
@@ skipping 83 matching lines @@
   virtual scoped_ptr<corewm::Tooltip> CreateTooltip() OVERRIDE;
   virtual scoped_ptr<aura::client::DragDropClient>
       CreateDragDropClient(DesktopNativeCursorManager* cursor_manager) OVERRIDE;
   virtual void Close() OVERRIDE;
   virtual void CloseNow() OVERRIDE;
   virtual aura::WindowTreeHost* AsWindowTreeHost() OVERRIDE;
   virtual void ShowWindowWithState(ui::WindowShowState show_state) OVERRIDE;
   virtual void ShowMaximizedWithBounds(
       const gfx::Rect& restored_bounds) OVERRIDE;
   virtual bool IsVisible() const OVERRIDE;
-  virtual void SetSize(const gfx::Size& size) OVERRIDE;
+  virtual void SetSize(const gfx::Size& requested_size) OVERRIDE;
   virtual void StackAtTop() OVERRIDE;
   virtual void CenterWindow(const gfx::Size& size) OVERRIDE;
   virtual void GetWindowPlacement(
       gfx::Rect* bounds,
       ui::WindowShowState* show_state) const OVERRIDE;
   virtual gfx::Rect GetWindowBoundsInScreen() const OVERRIDE;
   virtual gfx::Rect GetClientAreaBoundsInScreen() const OVERRIDE;
   virtual gfx::Rect GetRestoredBounds() const OVERRIDE;
   virtual gfx::Rect GetWorkAreaBoundsInScreen() const OVERRIDE;
   virtual void SetShape(gfx::NativeRegion native_region) OVERRIDE;
@@ skipping 32 matching lines @@
   virtual void OnNativeWidgetBlur() OVERRIDE;
   virtual bool IsAnimatingClosed() const OVERRIDE;
   virtual bool IsTranslucentWindowOpacitySupported() const OVERRIDE;
 
   // Overridden from aura::WindowTreeHost:
   virtual ui::EventSource* GetEventSource() OVERRIDE;
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
-  virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
+  virtual void SetBounds(const gfx::Rect& requested_bounds) OVERRIDE;
   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
   virtual void SetCursorNative(gfx::NativeCursor cursor) OVERRIDE;
   virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE;
   virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE;
 
   // Overridden frm ui::EventSource
   virtual ui::EventProcessor* GetEventProcessor() OVERRIDE;
 
  private:
   // Initializes our X11 surface to draw on. This method performs all
   // initialization related to talking to the X11 server.
   void InitX11Window(const Widget::InitParams& params);
 
   // Creates an aura::WindowEventDispatcher to contain the |content_window|,
   // along with all aura client objects that direct behavior.
   aura::WindowEventDispatcher* InitDispatcher(const Widget::InitParams& params);
 
+  // Adjusts |requested_size| to avoid the WM "feature" where setting the
+  // window size to the monitor size causes the WM to set the EWMH for
+  // fullscreen.
+  gfx::Size AdjustSize(const gfx::Size& requested_size);
+
   // Called when |xwindow_|'s _NET_WM_STATE property is updated.
   void OnWMStateUpdated();
 
   // Called when |xwindow_|'s _NET_FRAME_EXTENTS property is updated.
   void OnFrameExtentsUpdated();
 
   // Updates |xwindow_|'s minimum and maximum size.
   void UpdateMinAndMaxSize();
 
   // Updates |xwindow_|'s _NET_WM_USER_TIME if |xwindow_| is active.
@@ skipping 152 matching lines @@
   bool urgency_hint_set_;
 
   base::CancelableCallback<void()> delayed_resize_task_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_