media: Generalize MediaPermissionDispatcher.

content/renderer/media/media_permission_dispatcher.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 "content/renderer/media/media_permission_dispatcher.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/thread_task_runner_handle.h"
@@ skipping 17 matching lines @@
       return content::PERMISSION_NAME_VIDEO_CAPTURE;
   }
   NOTREACHED();
   return content::PERMISSION_NAME_PROTECTED_MEDIA_IDENTIFIER;
 }
 
 }  // namespace
 
 namespace content {
 
-MediaPermissionDispatcher::MediaPermissionDispatcher(RenderFrame* render_frame)
-    : RenderFrameObserver(render_frame),
+MediaPermissionDispatcher::MediaPermissionDispatcher(
+    const ConnectToServiceCB& connect_to_service_cb)
+    : connect_to_service_cb_(connect_to_service_cb),
       task_runner_(base::ThreadTaskRunnerHandle::Get()),
       next_request_id_(0),
-      weak_factory_(this) {}
+      weak_factory_(this) {
+  DCHECK(!connect_to_service_cb_.is_null());
+}
 
 MediaPermissionDispatcher::~MediaPermissionDispatcher() {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
 
   // Fire all pending callbacks with |false|.
   for (auto& request : requests_)
     request.second.Run(false);
 
   requests_.clear();
 }
 
 void MediaPermissionDispatcher::HasPermission(
     Type type,
     const GURL& security_origin,
     const PermissionStatusCB& permission_status_cb) {
   if (!task_runner_->RunsTasksOnCurrentThread()) {
     // Use BindToCurrentLoop to bind the callback to the current thread.
     task_runner_->PostTask(
         FROM_HERE, base::Bind(&MediaPermissionDispatcher::HasPermission,
                               weak_factory_.GetWeakPtr(), type, security_origin,
                               media::BindToCurrentLoop(permission_status_cb)));
     return;
   }
 
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
 
-  if (!permission_service_.get()) {
-    render_frame()->GetServiceRegistry()->ConnectToRemoteService(
-        mojo::GetProxy(&permission_service_));
-  }
+  if (!permission_service_.get())
+    connect_to_service_cb_.Run(mojo::GetProxy(&permission_service_));
 
   int request_id = RegisterCallback(permission_status_cb);
   DVLOG(2) << __FUNCTION__ << ": request ID " << request_id;
 
   permission_service_->HasPermission(
       MediaPermissionTypeToPermissionName(type), security_origin.spec(),
       base::Bind(&MediaPermissionDispatcher::OnPermissionStatus,
                  base::Unretained(this), request_id));
 }
 
 void MediaPermissionDispatcher::RequestPermission(
     Type type,
     const GURL& security_origin,
     const PermissionStatusCB& permission_status_cb) {
   if (!task_runner_->RunsTasksOnCurrentThread()) {
     // Use BindToCurrentLoop to bind the callback to the current thread.
     task_runner_->PostTask(
         FROM_HERE, base::Bind(&MediaPermissionDispatcher::RequestPermission,
                               weak_factory_.GetWeakPtr(), type, security_origin,
                               media::BindToCurrentLoop(permission_status_cb)));
     return;
   }
 
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
 
-  if (!permission_service_.get()) {
-    render_frame()->GetServiceRegistry()->ConnectToRemoteService(
-        mojo::GetProxy(&permission_service_));
-  }
+  if (!permission_service_.get())
+    connect_to_service_cb_.Run(mojo::GetProxy(&permission_service_));
 
   int request_id = RegisterCallback(permission_status_cb);
   DVLOG(2) << __FUNCTION__ << ": request ID " << request_id;
 
   permission_service_->RequestPermission(
       MediaPermissionTypeToPermissionName(type), security_origin.spec(),
       blink::WebUserGestureIndicator::isProcessingUserGesture(),
       base::Bind(&MediaPermissionDispatcher::OnPermissionStatus,
                  base::Unretained(this), request_id));
 }
@@ skipping 20 matching lines @@
     return;
   }
 
   PermissionStatusCB permission_status_cb = iter->second;
   requests_.erase(iter);
 
   permission_status_cb.Run(status == PERMISSION_STATUS_GRANTED);
 }
 
 }  // namespace content