Fix null argument to base::GetProcId in RenderProcessHostImpl::CreateMessageFilters.

content/browser/renderer_host/media/audio_input_renderer_host_unittest.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/renderer_host/media/audio_input_renderer_host.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 81 matching lines @@
  public:
   AudioInputRendererHostWithInterception(
       int render_process_id,
       int32_t renderer_pid,
       media::AudioManager* audio_manager,
       MediaStreamManager* media_stream_manager,
       AudioMirroringManager* audio_mirroring_manager,
       media::UserInputMonitor* user_input_monitor,
       MockRenderer* renderer)
       : AudioInputRendererHost(render_process_id,
-                               renderer_pid,
                                audio_manager,
                                media_stream_manager,
                                audio_mirroring_manager,
                                user_input_monitor),
         renderer_(renderer) {
     set_peer_process_for_testing(base::Process::Current());
+    set_renderer_pid(renderer_pid);
   }
 
  protected:
   ~AudioInputRendererHostWithInterception() override = default;
 
  private:
   bool Send(IPC::Message* message) override {
     DCHECK_CURRENTLY_ON(BrowserThread::IO);
     bool handled = true;
 
@@ skipping 439 matching lines @@
   EXPECT_CALL(controller_factory_, ControllerCreated());
 
   airh_->OnMessageReceived(AudioInputHostMsg_CreateStream(
       kStreamId, kRenderFrameId, session_id, DefaultConfig()));
   base::RunLoop().RunUntilIdle();
 
   EXPECT_CALL(*controller_factory_.controller(0), Close(_));
 }
 
 }  // namespace content