Adds routed interface support between RenderFrameHost and RenderFrame

content/public/browser/web_contents_binding_set.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/public/browser/web_contents_binding_set.h"
+
+#include <utility>
+
+#include "base/logging.h"
+#include "content/browser/web_contents/web_contents_impl.h"
+
+namespace content {
+
+void WebContentsBindingSet::Binder::OnRequestForFrame(
+    RenderFrameHost* render_frame_host,
+    mojo::ScopedInterfaceEndpointHandle handle) {
+  NOTREACHED();
+}
+
+WebContentsBindingSet::WebContentsBindingSet(WebContents* web_contents,
+                                             const std::string& interface_name,
+                                             std::unique_ptr<Binder> binder)
+    : remove_callback_(
+          static_cast<WebContentsImpl*>(web_contents)->AddBindingSet(
+              interface_name, this)),
+      binder_(std::move(binder)) {}
+
+WebContentsBindingSet::~WebContentsBindingSet() {
+  remove_callback_.Run();
+}
+
+void WebContentsBindingSet::CloseAllBindings() {
+  binder_.reset();
+}
+
+void WebContentsBindingSet::OnRequestForFrame(
+    RenderFrameHost* render_frame_host,
+    mojo::ScopedInterfaceEndpointHandle handle) {
+  DCHECK(binder_);
+  binder_->OnRequestForFrame(render_frame_host, std::move(handle));
+}
+
+}  // namespace content