Multiple dispatchers for root windows

ui/aura/root_window_host_linux.cc

 // 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.
 
 #include "ui/aura/root_window_host_linux.h"
 
 #include <X11/Xatom.h>
 #include <X11/Xcursor/Xcursor.h>
 #include <X11/Xlib.h>
 #include <X11/cursorfont.h>
@@ skipping 343 matching lines @@
   xwindow_ = XCreateWindow(
       xdisplay_, x_root_window_,
       bounds.x(), bounds.y(), bounds.width(), bounds.height(),
       0,               // border width
       CopyFromParent,  // depth
       InputOutput,
       CopyFromParent,  // visual
       CWBackPixmap,
       &swa);
   static_cast<DispatcherLinux*>(Env::GetInstance()->GetDispatcher())->
-      WindowDispatcherCreated(xwindow_, this);
+      RegisterDispatcher(xwindow_, this);
 
   prop_.reset(new ui::ViewProp(xwindow_, kRootWindowHostLinuxKey, this));
 
   long event_mask = ButtonPressMask | ButtonReleaseMask | FocusChangeMask |
                     KeyPressMask | KeyReleaseMask |
                     EnterWindowMask | LeaveWindowMask |
                     ExposureMask | VisibilityChangeMask |
                     StructureNotifyMask | PropertyChangeMask |
                     PointerMotionMask;
   XSelectInput(xdisplay_, xwindow_, event_mask);
@@ skipping 42 matching lines @@
   // crbug.com/120229 - set the window title so gtalk can find the primary root
   // window to broadcast.
   // TODO(jhorwich) Remove this once Chrome supports window-based broadcasting.
   static int root_window_number = 0;
   std::string name = StringPrintf("aura_root_%d", root_window_number++);
   XStoreName(xdisplay_, xwindow_, name.c_str());
 }
 
 RootWindowHostLinux::~RootWindowHostLinux() {
   static_cast<DispatcherLinux*>(Env::GetInstance()->GetDispatcher())->
-      WindowDispatcherDestroying(xwindow_);
+      UnregisterDispatcher(xwindow_);
 
   UnConfineCursor();
 
   XDestroyWindow(xdisplay_, xwindow_);
 
   // Clears XCursorCache.
   ui::GetXCursor(ui::kCursorClearXCursorCache);
 
   XFreeCursor(xdisplay_, invisible_cursor_);
 }
@@ skipping 466 matching lines @@
       ui::ViewProp::GetValue(accelerated_widget, kRootWindowHostLinuxKey));
 }
 
 // static
 gfx::Size RootWindowHost::GetNativeScreenSize() {
   ::Display* xdisplay = base::MessagePumpX::GetDefaultXDisplay();
   return gfx::Size(DisplayWidth(xdisplay, 0), DisplayHeight(xdisplay, 0));
 }
 
 }  // namespace aura