Remove dependency of ResourceDispatcherHostImpl on RenderViewHostImpl

content/browser/loader_delegate_impl.cc

+// Copyright 2016 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/loader_delegate_impl.h"
+
+#include "content/browser/renderer_host/render_view_host_impl.h"
+#include "content/public/browser/browser_thread.h"
+
+namespace content {
+
+LoaderDelegateImpl::~LoaderDelegateImpl() {}
+
+void LoaderDelegateImpl::LoadStateChanged(
+    int child_id,
+    int route_id,
+    const GURL& url,
+    const net::LoadStateWithParam& load_state,
+    uint64_t upload_position,
+    uint64_t upload_size) {
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&LoaderDelegateImpl::NotifyLoadStateChangedOnUI,
+                 base::Unretained(this), child_id, route_id, url, load_state,
+                 upload_position, upload_size));
+}
+
+void LoaderDelegateImpl::NotifyLoadStateChangedOnUI(
+    int child_id,
+    int route_id,
+    const GURL& url,
+    const net::LoadStateWithParam& load_state,
+    uint64_t upload_position,
+    uint64_t upload_size) {
+  RenderViewHostImpl* view = RenderViewHostImpl::FromID(child_id, route_id);
+  if (view)
+    view->LoadStateChanged(url, load_state, upload_position, upload_size);
+}
+
+}  // namespace content