[Ozone] Add Ozone EGL demo

ui/ozone/platform/dri/gbm_surface_factory.cc

Index: ui/ozone/platform/dri/gbm_surface_factory.cc
diff --git a/ui/ozone/platform/dri/gbm_surface_factory.cc b/ui/ozone/platform/dri/gbm_surface_factory.cc
index 9e9d3c4f68e567cb6369af327b6c4f019fe40f54..9b7b87fca70fd730f6b11015a980aa34468383e0 100644
--- a/ui/ozone/platform/dri/gbm_surface_factory.cc
+++ b/ui/ozone/platform/dri/gbm_surface_factory.cc
@@ -75,14 +75,19 @@ scoped_ptr<gfx::VSyncProvider> GbmSurfaceAdapter::CreateVSyncProvider() {
 
 }  // namespace
 
-GbmSurfaceFactory::GbmSurfaceFactory(DriWrapper* dri,
-                                     gbm_device* device,
-                                     ScreenManager* screen_manager)
-    : DriSurfaceFactory(dri, screen_manager),
-      device_(device) {}
+GbmSurfaceFactory::GbmSurfaceFactory()
+    : DriSurfaceFactory(NULL, NULL),
+      device_(NULL) {}
 
 GbmSurfaceFactory::~GbmSurfaceFactory() {}
 
+void GbmSurfaceFactory::InitializeGpu(
+    DriWrapper* dri, gbm_device* device, ScreenManager* screen_manager) {
+  drm_ = dri;
+  device_ = device;
+  screen_manager_ = screen_manager;
+}
+
 intptr_t GbmSurfaceFactory::GetNativeDisplay() {
   CHECK(state_ == INITIALIZED);
   return reinterpret_cast<intptr_t>(device_);