Revert of Add Java wrapper for RenderFrameHost

content/browser/frame_host/render_frame_host_android.cc

-// Copyright 2017 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.
-
-#include "content/browser/frame_host/render_frame_host_android.h"
-
-#include "base/android/jni_string.h"
-#include "base/logging.h"
-#include "content/browser/frame_host/render_frame_host_delegate.h"
-#include "content/browser/frame_host/render_frame_host_impl.h"
-#include "jni/RenderFrameHostImpl_jni.h"
-
-using base::android::AttachCurrentThread;
-using base::android::ConvertUTF8ToJavaString;
-using base::android::JavaParamRef;
-using base::android::JavaRef;
-using base::android::ScopedJavaLocalRef;
-
-namespace content {
-
-// static
-bool RenderFrameHostAndroid::Register(JNIEnv* env) {
-  return RegisterNativesImpl(env);
-}
-
-RenderFrameHostAndroid::RenderFrameHostAndroid(
-    RenderFrameHostImpl* render_frame_host)
-    : render_frame_host_(render_frame_host) {}
-
-RenderFrameHostAndroid::~RenderFrameHostAndroid() {
-  ScopedJavaLocalRef<jobject> jobj = GetJavaObject();
-  if (!jobj.is_null()) {
-    Java_RenderFrameHostImpl_clearNativePtr(AttachCurrentThread(), jobj);
-    obj_.reset();
-  }
-}
-
-base::android::ScopedJavaLocalRef<jobject>
-RenderFrameHostAndroid::GetJavaObject() {
-  JNIEnv* env = base::android::AttachCurrentThread();
-  if (obj_.is_uninitialized()) {
-    ScopedJavaLocalRef<jobject> local_ref = Java_RenderFrameHostImpl_create(
-        env, reinterpret_cast<intptr_t>(this),
-        render_frame_host_->delegate()->GetJavaRenderFrameHostDelegate());
-    obj_ = JavaObjectWeakGlobalRef(env, local_ref);
-    return local_ref;
-  }
-  return obj_.get(env);
-}
-
-ScopedJavaLocalRef<jstring> RenderFrameHostAndroid::GetLastCommittedURL(
-    JNIEnv* env,
-    const JavaParamRef<jobject>& obj) const {
-  return ConvertUTF8ToJavaString(
-      env, render_frame_host_->GetLastCommittedURL().spec());
-}
-
-}  // namespace content