[WIP] Make content_shell run under Wayland

ui/aura/window_tree_host.cc

 // Copyright (c) 2013 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/window_tree_host.h"
 
 #include "base/threading/thread_task_runner_handle.h"
 #include "base/trace_event/trace_event.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/client/cursor_client.h"
@@ skipping 46 matching lines @@
 }
 
 void WindowTreeHost::InitHost() {
   InitCompositor();
   UpdateRootWindowSize(GetBounds().size());
   Env::GetInstance()->NotifyHostInitialized(this);
   window()->Show();
 }
 
 void WindowTreeHost::InitCompositor() {
+  display::Screen::GetScreen()->WaitForScreenSizeAvailable();

[zoli, 2016/07/18 06:53:33]

Missing dependency on //ui/display. This will break the component builds.

   compositor_->SetScaleAndSize(GetDeviceScaleFactorFromDisplay(window()),
                                GetBounds().size());
   compositor_->SetRootLayer(window()->layer());
 }
 
 void WindowTreeHost::AddObserver(WindowTreeHostObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void WindowTreeHost::RemoveObserver(WindowTreeHostObserver* observer) {
@@ skipping 242 matching lines @@
   client::CursorClient* cursor_client = client::GetCursorClient(window());
   if (cursor_client) {
     const display::Display& display =
         display::Screen::GetScreen()->GetDisplayNearestWindow(window());
     cursor_client->SetDisplay(display);
   }
   dispatcher()->OnCursorMovedToRootLocation(root_location);
 }
 
 }  // namespace aura