media: Add MediaOzonePlatform support

ui/ozone/platform/dri/ozone_platform_dri.cc

Index: ui/ozone/platform/dri/ozone_platform_dri.cc
diff --git a/ui/ozone/platform/dri/ozone_platform_dri.cc b/ui/ozone/platform/dri/ozone_platform_dri.cc
index 09dadb31f632dcecf2d0a3712b44aea07a7e9ce1..f8389365f51b5ec7a52b6ecc776bd9f79c252e92 100644
--- a/ui/ozone/platform/dri/ozone_platform_dri.cc
+++ b/ui/ozone/platform/dri/ozone_platform_dri.cc
@@ -4,6 +4,7 @@
 
 #include "ui/ozone/platform/dri/ozone_platform_dri.h"
 
+#include "content/common/gpu/media/video_decode_factory_ozone.h"
 #include "ui/events/ozone/device/device_manager.h"
 #include "ui/events/ozone/evdev/cursor_delegate_evdev.h"
 #include "ui/events/ozone/evdev/event_factory_evdev.h"
@@ -33,6 +34,10 @@ class OzonePlatformDri : public OzonePlatform {
   virtual ~OzonePlatformDri() {}
 
   // OzonePlatform:
+  virtual content::VideoDecodeFactoryOzone* GetVideoDecodeFactoryOzone()
+      OVERRIDE {
+    return &video_decode_factory_ozone_;
+  }
   virtual gfx::SurfaceFactoryOzone* GetSurfaceFactoryOzone() OVERRIDE {
     return &surface_factory_ozone_;
   }
@@ -58,6 +63,7 @@ class OzonePlatformDri : public OzonePlatform {
  private:
   scoped_ptr<DeviceManager> device_manager_;
 
+  content::VideoDecodeFactoryOzone video_decode_factory_ozone_;
   ui::DriSurfaceFactory surface_factory_ozone_;
   ui::CursorFactoryEvdevDri cursor_factory_ozone_;
   ui::EventFactoryEvdev event_factory_ozone_;