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diff --git a/chrome/common/x11_util.h b/chrome/common/x11_util.h
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--- a/chrome/common/x11_util.h
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@@ -1,173 +0,0 @@
-// Copyright (c) 2010 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_COMMON_X11_UTIL_H_
-#define CHROME_COMMON_X11_UTIL_H_
-
-// This file declares utility functions for X11 (Linux only).
-//
-// These functions do not require the Xlib headers to be included (which is why
-// we use a void* for Visual*). The Xlib headers are highly polluting so we try
-// hard to limit their spread into the rest of the code.
-
-#include <string>
-#include <vector>
-
-#include "base/task.h"
-#include "gfx/rect.h"
-
-typedef struct _GdkDrawable GdkWindow;
-typedef struct _GtkWidget GtkWidget;
-typedef struct _GtkWindow GtkWindow;
-typedef unsigned long XID;
-typedef unsigned long XSharedMemoryId;  // ShmSeg in the X headers.
-typedef struct _XDisplay Display;
-
-namespace base {
-class Thread;
-}
-
-namespace gfx {
-class Size;
-}
-
-namespace x11_util {
-
-// These functions use the GDK default display and this /must/ be called from
-// the UI thread. Thus, they don't support multiple displays.
-
-// These functions cache their results ---------------------------------
-
-// Check if there's an open connection to an X server.
-bool XDisplayExists();
-// Return an X11 connection for the current, primary display.
-Display* GetXDisplay();
-
-// X shared memory comes in three flavors:
-// 1) No SHM support,
-// 2) SHM putimage,
-// 3) SHM pixmaps + putimage.
-enum SharedMemorySupport {
-  SHARED_MEMORY_NONE,
-  SHARED_MEMORY_PUTIMAGE,
-  SHARED_MEMORY_PIXMAP
-};
-// Return the shared memory type of our X connection.
-SharedMemorySupport QuerySharedMemorySupport(Display* dpy);
-
-// Return true iff the display supports Xrender
-bool QueryRenderSupport(Display* dpy);
-
-// Return the default screen number for the display
-int GetDefaultScreen(Display* display);
-
-// These functions do not cache their results --------------------------
-
-// Get the X window id for the default root window
-XID GetX11RootWindow();
-// Get the X window id for the given GTK widget.
-XID GetX11WindowFromGtkWidget(GtkWidget* widget);
-XID GetX11WindowFromGdkWindow(GdkWindow* window);
-// Get a Visual from the given widget. Since we don't include the Xlib
-// headers, this is returned as a void*.
-void* GetVisualFromGtkWidget(GtkWidget* widget);
-// Return the number of bits-per-pixel for a pixmap of the given depth
-int BitsPerPixelForPixmapDepth(Display* display, int depth);
-// Returns true if |window| is visible.
-bool IsWindowVisible(XID window);
-// Returns the bounds of |window|.
-bool GetWindowRect(XID window, gfx::Rect* rect);
-// Get the value of an int or string property.  On success, true is returned and
-// the value is stored in |value|.
-bool GetIntProperty(XID window, const std::string& property_name, int* value);
-bool GetStringProperty(
-    XID window, const std::string& property_name, std::string* value);
-
-// Get |window|'s parent window, or None if |window| is the root window.
-XID GetParentWindow(XID window);
-
-// Walk up |window|'s hierarchy until we find a direct child of |root|.
-XID GetHighestAncestorWindow(XID window, XID root);
-
-// Implementers of this interface receive a notification for every X window of
-// the main display.
-class EnumerateWindowsDelegate {
- public:
-  // |xid| is the X Window ID of the enumerated window.  Return true to stop
-  // further iteration.
-  virtual bool ShouldStopIterating(XID xid) = 0;
-
- protected:
-  virtual ~EnumerateWindowsDelegate() {}
-};
-
-// Enumerates all windows in the current display.  Will recurse into child
-// windows up to a depth of |max_depth|.
-bool EnumerateAllWindows(EnumerateWindowsDelegate* delegate, int max_depth);
-
-// Returns a list of top-level windows in top-to-bottom stacking order.
-bool GetXWindowStack(std::vector<XID>* windows);
-
-// Restack a window in relation to one of its siblings.  If |above| is true,
-// |window| will be stacked directly above |sibling|; otherwise it will stacked
-// directly below it.  Both windows must be immediate children of the same
-// window.
-void RestackWindow(XID window, XID sibling, bool above);
-
-// Return a handle to a X ShmSeg. |shared_memory_key| is a SysV
-// IPC key. The shared memory region must contain 32-bit pixels.
-XSharedMemoryId AttachSharedMemory(Display* display, int shared_memory_support);
-void DetachSharedMemory(Display* display, XSharedMemoryId shmseg);
-
-// Return a handle to an XRender picture where |pixmap| is a handle to a
-// pixmap containing Skia ARGB data.
-XID CreatePictureFromSkiaPixmap(Display* display, XID pixmap);
-
-// Draws ARGB data on the given pixmap using the given GC, converting to the
-// server side visual depth as needed.  Destination is assumed to be the same
-// dimensions as |data| or larger.  |data| is also assumed to be in row order
-// with each line being exactly |width| * 4 bytes long.
-void PutARGBImage(Display* display, void* visual, int depth, XID pixmap,
-                  void* pixmap_gc, const uint8* data, int width, int height);
-
-void FreePicture(Display* display, XID picture);
-void FreePixmap(Display* display, XID pixmap);
-
-// These functions are for performing X opertions outside of the UI thread.
-
-// Return the Display for the secondary X connection. We keep a second
-// connection around for making X requests outside of the UI thread.
-// This function may only be called from the BACKGROUND_X11 thread.
-Display* GetSecondaryDisplay();
-
-// Since one cannot include both WebKit header and Xlib headers in the same
-// file (due to collisions), we wrap all the Xlib functions that we need here.
-// These functions must be called on the BACKGROUND_X11 thread since they
-// reference GetSecondaryDisplay().
-
-// Get the position of the given window in screen coordinates as well as its
-// current size.
-bool GetWindowGeometry(int* x, int* y, unsigned* width, unsigned* height,
-                       XID window);
-
-// Find the immediate parent of an X window.
-//
-// parent_window: (output) the parent window of |window|, or 0.
-// parent_is_root: (output) true iff the parent of |window| is the root window.
-bool GetWindowParent(XID* parent_window, bool* parent_is_root, XID window);
-
-// Get the window manager name.
-bool GetWindowManagerName(std::string* name);
-
-// Grabs a snapshot of the designated window and stores a PNG representation
-// into a byte vector.
-void GrabWindowSnapshot(GtkWindow* gdk_window,
-                        std::vector<unsigned char>* png_representation);
-
-// Change desktop for |window| to the desktop of |destination| window.
-bool ChangeWindowDesktop(XID window, XID destination);
-
-}  // namespace x11_util
-
-#endif  // CHROME_COMMON_X11_UTIL_H_