view-manager: Fix some issues regarding running tests in x11.

ui/platform_window/x11/x11_window.cc

 // Copyright 2014 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/platform_window/x11/x11_window.h"
 
 #include <X11/extensions/XInput2.h>
 #include <X11/Xatom.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
@@ skipping 182 matching lines @@
   // will ignore toplevel XMoveWindow commands.
   XSizeHints size_hints;
   size_hints.flags = PPosition | PWinGravity;
   size_hints.x = requested_bounds_.x();
   size_hints.y = requested_bounds_.y();
   // Set StaticGravity so that the window position is not affected by the
   // frame width when running with window manager.
   size_hints.win_gravity = StaticGravity;
   XSetWMNormalHints(xdisplay_, xwindow_, &size_hints);
 
-  // TODO(sky): provide real scale factor.
-  delegate_->OnAcceleratedWidgetAvailable(xwindow_, 1.f);
-
   XMapWindow(xdisplay_, xwindow_);
 
   // We now block until our window is mapped. Some X11 APIs will crash and
   // burn if passed |xwindow_| before the window is mapped, and XMapWindow is
   // asynchronous.
   if (X11EventSource::GetInstance())
     X11EventSource::GetInstance()->BlockUntilWindowMapped(xwindow_);
   window_mapped_ = true;
+
+  // TODO(sky): provide real scale factor.
+  delegate_->OnAcceleratedWidgetAvailable(xwindow_, 1.f);
 }
 
 void X11Window::Hide() {
   if (!window_mapped_)
     return;
   XWithdrawWindow(xdisplay_, xwindow_, 0);
   window_mapped_ = false;
 }
 
 void X11Window::Close() {
@@ skipping 148 matching lines @@
 }
 
 namespace test {
 
 void SetUseOverrideRedirectWindowByDefault(bool override_redirect) {
   g_override_redirect = override_redirect;
 }
 
 }  // namespace test
 }  // namespace ui