[Android] Port Scroller.java to C++ and use for fling animations

content/child/android/child_jni_registrar.h

Index: content/child/android/child_jni_registrar.h
diff --git a/content/child/android/child_jni_registrar.h b/content/child/android/child_jni_registrar.h
deleted file mode 100644
index dfcc730ad81bfd4a5d9493c8d0aea4e627d7b320..0000000000000000000000000000000000000000
--- a/content/child/android/child_jni_registrar.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// Copyright 2013 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 CONTENT_CHILD_ANDROID_CHILD_JNI_REGISTRAR_H_
-#define CONTENT_CHILD_ANDROID_CHILD_JNI_REGISTRAR_H_
-
-#include <jni.h>
-
-#include "content/common/content_export.h"
-
-namespace content {
-namespace android {
-
-// Register all JNI bindings necessary for content child.
-CONTENT_EXPORT bool RegisterChildJni(JNIEnv* env);
-
-}  // namespace android
-}  // namespace content
-
-#endif  // CONTENT_CHILD_ANDROID_CHILD_JNI_REGISTRAR_H_