Move touchscreen device caching to DeviceDataManager

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 b486b20663ce69adcb74fdc5b07a9c06d2d8c392..5aae2f752f24eac403b15d5c78548de5e302444f 100644
--- a/ui/ozone/platform/dri/ozone_platform_dri.cc
+++ b/ui/ozone/platform/dri/ozone_platform_dri.cc
@@ -21,7 +21,6 @@
 #include "ui/ozone/public/ozone_platform.h"
 
 #if defined(OS_CHROMEOS)
-#include "ui/ozone/common/chromeos/touchscreen_device_manager_ozone.h"
 #include "ui/ozone/platform/dri/chromeos/native_display_delegate_dri.h"
 #endif
 
@@ -82,11 +81,6 @@ class OzonePlatformDri : public OzonePlatform {
     return scoped_ptr<NativeDisplayDelegate>(new NativeDisplayDelegateDri(
         dri_.get(), screen_manager_.get(), device_manager_.get()));
   }
-  virtual scoped_ptr<TouchscreenDeviceManager>
-      CreateTouchscreenDeviceManager() OVERRIDE {
-    return scoped_ptr<TouchscreenDeviceManager>(
-        new TouchscreenDeviceManagerOzone());
-  }
 #endif
   virtual void InitializeUI() OVERRIDE {
     dri_->Initialize();