media: Support MojoRendererService in the browser process.

content/browser/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//content/browser/browser.gni")
 import("//media/media_options.gni")
 
@@ skipping 424 matching lines @@
       "media/cdm/browser_cdm_manager.cc",
       "media/cdm/browser_cdm_manager.h",
       "media/media_web_contents_observer.cc",
       "media/media_web_contents_observer.h",
     ]
   }
 
   if (is_linux && use_openssl) {
     deps += [ "//third_party/boringssl" ]
   }
+
+  if (enable_media_mojo_renderer) {
+    deps += [ "//media/mojo/services:renderer_service" ]
+  }
 }