Introduce a layering in the invalidation component as public and impl

components/invalidation/android/component_jni_registrar.h

Index: components/invalidation/android/component_jni_registrar.h
diff --git a/components/invalidation/android/component_jni_registrar.h b/components/invalidation/android/component_jni_registrar.h
deleted file mode 100644
index 7fb44c4826e6980e878c8a518ced4d4be000fbe6..0000000000000000000000000000000000000000
--- a/components/invalidation/android/component_jni_registrar.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COMPONENTS_INVALIDATION_ANDROID_COMPONENT_JNI_REGISTRAR_H_
-#define COMPONENTS_INVALIDATION_ANDROID_COMPONENT_JNI_REGISTRAR_H_
-
-#include <jni.h>
-
-namespace invalidation {
-
-namespace android {
-
-// Register all JNI bindings necessary for the invalidation component.
-bool RegisterInvalidationJni(JNIEnv* env);
-
-}  // namespace android
-
-}  // namespace invalidation
-
-#endif  // COMPONENTS_INVALIDATION_ANDROID_COMPONENT_JNI_REGISTRAR_H_