linux/x11: Fix setting window bounds in High DPI.

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 129 matching lines @@
   void InitModalType(ui::ModalType modal_type) override;
   void FlashFrame(bool flash_frame) override;
   void OnRootViewLayout() override;
   void OnNativeWidgetFocus() override;
   void OnNativeWidgetBlur() override;
   bool IsAnimatingClosed() const override;
   bool IsTranslucentWindowOpacitySupported() const override;
   void SizeConstraintsChanged() override;
 
   // Overridden from aura::WindowTreeHost:
+  gfx::Transform GetRootTransform() const override;
   ui::EventSource* GetEventSource() override;
   gfx::AcceleratedWidget GetAcceleratedWidget() override;
   void Show() override;
   void Hide() override;
   gfx::Rect GetBounds() const override;
   void SetBounds(const gfx::Rect& requested_bounds) override;
   gfx::Point GetLocationOnNativeScreen() const override;
   void SetCapture() override;
   void ReleaseCapture() override;
   void SetCursorNative(gfx::NativeCursor cursor) override;
@@ skipping 76 matching lines @@
 
   // Relayout the widget's client and non-client views.
   void Relayout();
 
   // ui::PlatformEventDispatcher:
   bool CanDispatchEvent(const ui::PlatformEvent& event) override;
   uint32_t DispatchEvent(const ui::PlatformEvent& event) override;
 
   void DelayedResize(const gfx::Size& size);
 
+  gfx::Rect GetWorkAreaBoundsInPixels() const;
+  gfx::Rect ToDIPRect(const gfx::Rect& rect_in_pixels) const;
+  gfx::Rect ToPixelRect(const gfx::Rect& rect_in_dip) const;
+
   // X11 things
   // The display and the native X window hosting the root window.
   XDisplay* xdisplay_;
   ::Window xwindow_;
 
   // The native root window.
   ::Window x_root_window_;
 
   ui::X11AtomCache atom_cache_;
 
   // Is the window mapped to the screen?
   bool window_mapped_;
 
   // The bounds of |xwindow_|.
-  gfx::Rect bounds_;
+  gfx::Rect bounds_in_pixels_;
 
   // Whenever the bounds are set, we keep the previous set of bounds around so
   // we can have a better chance of getting the real |restored_bounds_|. Window
   // managers tend to send a Configure message with the maximized bounds, and
   // then set the window maximized property. (We don't rely on this for when we
   // request that the window be maximized, only when we detect that some other
   // process has requested that we become the maximized window.)
   gfx::Rect previous_bounds_;
 
   // The bounds of our window before we were maximized.
@@ skipping 71 matching lines @@
   base::CancelableCallback<void()> delayed_resize_task_;
 
   base::WeakPtrFactory<DesktopWindowTreeHostX11> close_widget_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopWindowTreeHostX11);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_WIDGET_DESKTOP_AURA_DESKTOP_WINDOW_TREE_HOST_X11_H_