Move touchscreen device caching to DeviceDataManager

ui/ozone/platform/caca/ozone_platform_caca.cc

Index: ui/ozone/platform/caca/ozone_platform_caca.cc
diff --git a/ui/ozone/platform/caca/ozone_platform_caca.cc b/ui/ozone/platform/caca/ozone_platform_caca.cc
index 6746129b927262a0ef6c4aba497778c875fd0676..904776cfb86e50b79802dd17f1ebafe1de0dc516 100644
--- a/ui/ozone/platform/caca/ozone_platform_caca.cc
+++ b/ui/ozone/platform/caca/ozone_platform_caca.cc
@@ -12,7 +12,6 @@
 
 #if defined(OS_CHROMEOS)
 #include "ui/ozone/common/chromeos/native_display_delegate_ozone.h"
-#include "ui/ozone/common/chromeos/touchscreen_device_manager_ozone.h"
 #endif
 
 namespace ui {
@@ -52,11 +51,6 @@ class OzonePlatformCaca : public OzonePlatform {
       OVERRIDE {
     return scoped_ptr<NativeDisplayDelegate>(new NativeDisplayDelegateOzone());
   }
-  virtual scoped_ptr<TouchscreenDeviceManager>
-      CreateTouchscreenDeviceManager() OVERRIDE {
-    return scoped_ptr<TouchscreenDeviceManager>(
-        new TouchscreenDeviceManagerOzone());
-  }
 #endif
 
   virtual void InitializeUI() OVERRIDE {