Remove InitializeForUI() from OzonePlatform

ui/ozone/public/ozone_platform.h

Index: ui/ozone/public/ozone_platform.h
diff --git a/ui/ozone/public/ozone_platform.h b/ui/ozone/public/ozone_platform.h
index ad4536366c34cd044ff50dbd17b46311369786ee..cdffdc137d655693e2ecc2196b096c45d4b3617d 100644
--- a/ui/ozone/public/ozone_platform.h
+++ b/ui/ozone/public/ozone_platform.h
@@ -79,11 +79,6 @@ class OZONE_EXPORT OzonePlatform {
   static OzonePlatform* EnsureInstance();
 
   // Initializes the subsystems/resources necessary for the UI process (e.g.
-  // events, etc.)
-  // TODO(rjkroege): Remove deprecated entry point (http://crbug.com/620934)
-  static void InitializeForUI();
-
-  // Initializes the subsystems/resources necessary for the UI process (e.g.
   // events) with additional properties to customize the ozone platform
   // implementation. Ozone will not retain InitParams after returning from
   // InitalizeForUI.
@@ -126,10 +121,8 @@ class OZONE_EXPORT OzonePlatform {
   virtual void AddInterfaces(service_manager::InterfaceRegistry* registry);
 
  private:
-  virtual void InitializeUI() = 0;
-  virtual void InitializeGPU() = 0;
-  virtual void InitializeUI(const InitParams& args);
-  virtual void InitializeGPU(const InitParams& args);
+  virtual void InitializeUI(const InitParams& args) = 0;
+  virtual void InitializeGPU(const InitParams& args) = 0;
 
   static OzonePlatform* instance_;