ozone: Move public files to ui/ozone/public & update public DEPS

ui/ozone/public/ozone_platform.h

Index: ui/ozone/public/ozone_platform.h
diff --git a/ui/ozone/ozone_platform.h b/ui/ozone/public/ozone_platform.h
similarity index 95%
rename from ui/ozone/ozone_platform.h
rename to ui/ozone/public/ozone_platform.h
index 710eb9daf49385ebae61feb0677c9d2073b1c9ac..96225c7db0ebdd226298918eac7372ec885409c2 100644
--- a/ui/ozone/ozone_platform.h
+++ b/ui/ozone/public/ozone_platform.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef UI_OZONE_OZONE_PLATFORM_H_
-#define UI_OZONE_OZONE_PLATFORM_H_
+#ifndef UI_OZONE_PUBLIC_OZONE_PLATFORM_H_
+#define UI_OZONE_PUBLIC_OZONE_PLATFORM_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/ozone/ozone_export.h"
@@ -74,4 +74,4 @@ class OZONE_EXPORT OzonePlatform {
 
 }  // namespace ui
 
-#endif  // UI_OZONE_OZONE_PLATFORM_H_
+#endif  // UI_OZONE_PUBLIC_OZONE_PLATFORM_H_