x11: Move X event handling out of the message-pump.

ash/drag_drop/drag_drop_interactive_uitest.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 "ash/drag_drop/drag_drop_controller.h"
 
 #include "ash/shell.h"
 #include "ash/test/ash_test_base.h"
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/aura/window_event_dispatcher.h"
 #include "ui/base/dragdrop/drag_drop_types.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/base/test/ui_controls.h"
 #include "ui/base/ui_base_paths.h"
+#include "ui/events/platform/platform_event_source.h"
 #include "ui/gl/gl_surface.h"
 #include "ui/views/view.h"
 #include "ui/views/widget/widget.h"
 
 namespace ash {
 namespace internal {
 namespace {
 
 class DraggableView : public views::View {
  public:
@@ skipping 104 matching lines @@
 
     ui::RegisterPathProvider();
     ResourceBundle::InitSharedInstanceWithLocale("en-US", NULL);
     base::FilePath resources_pack_path;
     PathService::Get(base::DIR_MODULE, &resources_pack_path);
     resources_pack_path =
         resources_pack_path.Append(FILE_PATH_LITERAL("resources.pak"));
     ResourceBundle::GetSharedInstance().AddDataPackFromPath(
         resources_pack_path, ui::SCALE_FACTOR_NONE);
 
+    event_source_ = ui::PlatformEventSource::CreateDefault();
     test::AshTestBase::SetUp();
   }
+
+ private:
+  scoped_ptr<ui::PlatformEventSource> event_source_;
+
+  DISALLOW_COPY_AND_ASSIGN(DragDropTest);
 };
 
 #if defined(OS_WIN)
 #define MAYBE_DragDropAcrossMultiDisplay DISABLED_DragDropAcrossMultiDisplay
 #else
 #define MAYBE_DragDropAcrossMultiDisplay DragDropAcrossMultiDisplay
 #endif
 
 // Test if the mouse gets moved properly to another display
 // during drag & drop operation.
@@ skipping 25 matching lines @@
   base::MessageLoop::current()->Run();
 
   EXPECT_TRUE(target_view->dropped());
 
   source->Close();
   target->Close();
 }
 
 }  // namespace internal
 }  // namespace ash