ozone: Port WindowTreeHostOzone on top of PlatformWindow

ui/ozone/platform/egltest/ozone_platform_egltest.cc

Index: ui/ozone/platform/egltest/ozone_platform_egltest.cc
diff --git a/ui/ozone/platform/egltest/ozone_platform_egltest.cc b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
index ebea5d0a68d0a3f59145dba5da63803cb1815c9f..dc34d737e57c6e1f90f8c3139689870ef2d49389 100644
--- a/ui/ozone/platform/egltest/ozone_platform_egltest.cc
+++ b/ui/ozone/platform/egltest/ozone_platform_egltest.cc
@@ -12,6 +12,7 @@
 #include "ui/events/ozone/device/device_manager.h"
 #include "ui/events/ozone/evdev/event_factory_evdev.h"
 #include "ui/gfx/vsync_provider.h"
+#include "ui/ozone/common/window/platform_window_compat.h"
 #include "ui/ozone/public/cursor_factory_ozone.h"
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
@@ -260,6 +261,12 @@ class OzonePlatformEgltest : public OzonePlatform {
   virtual GpuPlatformSupportHost* GetGpuPlatformSupportHost() OVERRIDE {
     return gpu_platform_support_host_.get();
   }
+  virtual scoped_ptr<PlatformWindow> CreatePlatformWindow(
+      PlatformWindowDelegate* delegate,
+      const gfx::Rect& bounds) OVERRIDE {
+    return make_scoped_ptr<PlatformWindow>(
+        new PlatformWindowCompat(delegate, bounds));
+  }
 
 #if defined(OS_CHROMEOS)
   virtual scoped_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()