More old files deletion.

ui/base/x/x11_util.h

Index: ui/base/x/x11_util.h
diff --git a/ui/base/x/x11_util.h b/ui/base/x/x11_util.h
index 1346f74586a49f6d8da33fd888067705d75ff9c9..b9896776b4dfb99c6a1d5e7cb53f08769e02204c 100644
--- a/ui/base/x/x11_util.h
+++ b/ui/base/x/x11_util.h
@@ -243,16 +243,6 @@ UI_BASE_EXPORT void EnumerateTopLevelWindows(
 // order.
 UI_BASE_EXPORT bool GetXWindowStack(XID window, std::vector<XID>* windows);
 
-// Copies |source_bounds| from |drawable| to |canvas| at offset |dest_offset|.
-// |source_bounds| is in physical pixels, while |dest_offset| is relative to
-// the canvas's scale. Note that this function is slow since it uses
-// XGetImage() to copy the data from the X server to this process before
-// copying it to |canvas|.
-UI_BASE_EXPORT bool CopyAreaToCanvas(XID drawable,
-                                     gfx::Rect source_bounds,
-                                     gfx::Point dest_offset,
-                                     gfx::Canvas* canvas);
-
 enum WindowManagerName {
   WM_UNKNOWN,