Remove IPC_BEGIN_MESSAGE_MAP_EX macro since r270839 made all bad IPCs kill their child processes.

content/browser/renderer_host/media/device_request_message_filter_unittest.cc

 // Copyright 2013 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 "base/strings/string_number_conversions.h"
 #include "content/browser/renderer_host/media/device_request_message_filter.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
 #include "content/common/media/media_stream_messages.h"
 #include "content/public/test/mock_resource_context.h"
 #include "content/public/test/test_browser_thread.h"
@@ skipping 162 matching lines @@
       physical_video_devices_.push_back(
           StreamDeviceInfo(
               MEDIA_DEVICE_VIDEO_CAPTURE,
               "/dev/video/" + base::IntToString(next_device_id_),
               "Video Device" + base::IntToString(next_device_id_)));
       next_device_id_++;
     }
   }
 
   void SendGetSourcesMessage(int request_id, const GURL& origin) {
-    // Since we're not actually sending IPC messages, this is a throw-away
-    // value.
-    bool message_was_ok;
-    host_->OnMessageReceived(MediaStreamHostMsg_GetSources(request_id, origin),
-                             &message_was_ok);
+    host_->OnMessageReceived(MediaStreamHostMsg_GetSources(request_id, origin));
   }
 
   void FireAudioDeviceCallback() {
     host_->DevicesEnumerated(-1, -1, kAudioLabel, physical_audio_devices_);
   }
 
   void FireVideoDeviceCallback() {
     host_->DevicesEnumerated(-1, -1, kVideoLabel, physical_video_devices_);
   }
 
@@ skipping 52 matching lines @@
 
 TEST_F(DeviceRequestMessageFilterTest, TestGetSources_AllowMicAllowCamera) {
   resource_context_->set_mic_access(true);
   resource_context_->set_camera_access(true);
   RunTest(3, 3);
   EXPECT_TRUE(AreLabelsPresent(MEDIA_DEVICE_AUDIO_CAPTURE));
   EXPECT_TRUE(AreLabelsPresent(MEDIA_DEVICE_VIDEO_CAPTURE));
 }
 
 };  // namespace content