Privatize StrongBinding lifetime management

chrome/browser/chromeos/attestation/platform_verification_impl.cc

 // Copyright 2015 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 "chrome/browser/chromeos/attestation/platform_verification_impl.h"
 
 #include <utility>
 
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
+#include "mojo/public/cpp/bindings/strong_binding.h"
 
 namespace chromeos {
 namespace attestation {
 
 using media::mojom::PlatformVerification;
 
 // static
 void PlatformVerificationImpl::Create(
     content::RenderFrameHost* render_frame_host,
     mojo::InterfaceRequest<PlatformVerification> request) {
   DVLOG(2) << __FUNCTION__;
   DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
   DCHECK(render_frame_host);
-
-  // The created object is strongly bound to (and owned by) the pipe.
-  new PlatformVerificationImpl(render_frame_host, std::move(request));
+  mojo::MakeStrongBinding(
+      base::MakeUnique<PlatformVerificationImpl>(render_frame_host),
+      std::move(request));
 }
 
 PlatformVerificationImpl::PlatformVerificationImpl(
-    content::RenderFrameHost* render_frame_host,
-    mojo::InterfaceRequest<PlatformVerification> request)
-    : binding_(this, std::move(request)),
-      render_frame_host_(render_frame_host),
-      weak_factory_(this) {
+    content::RenderFrameHost* render_frame_host)
+    : render_frame_host_(render_frame_host), weak_factory_(this) {
   DCHECK(render_frame_host);
 }
 
 PlatformVerificationImpl::~PlatformVerificationImpl() {
 }
 
 void PlatformVerificationImpl::ChallengePlatform(
     const mojo::String& service_id,
     const mojo::String& challenge,
     const ChallengePlatformCallback& callback) {
@@ skipping 28 matching lines @@
   }
 
   DCHECK(!signed_data.empty());
   DCHECK(!signature.empty());
   DCHECK(!platform_key_certificate.empty());
   callback.Run(true, signed_data, signature, platform_key_certificate);
 }
 
 }  // namespace attestation
 }  // namespace chromeos