Move media::mojom::RemoterFactory to content, add ContentBrowserClient API.

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/features.gni")
 import("//build/config/ui.gni")
 import("//media/media_options.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
 import("//tools/ipc_fuzzer/ipc_fuzzer.gni")
@@ skipping 130 matching lines @@
     "//ui/gfx/geometry/mojo",
     "//ui/gl",
     "//ui/native_theme",
     "//ui/resources",
     "//ui/shell_dialogs",
     "//ui/snapshot",
     "//ui/touch_selection",
   ]
 
   public_deps = [
+    "//media/mojo/interfaces:remoting",
     "//third_party/leveldatabase",
   ]
 
   sources = [
     # devtools_protocol_dispatcher.* is generated by
     # //content/browser/devtools:gen_devtools_protocol_handler.
     "$root_gen_dir/content/browser/devtools/protocol/devtools_protocol_dispatcher.cc",
     "$root_gen_dir/content/browser/devtools/protocol/devtools_protocol_dispatcher.h",
     "$target_gen_dir/devtools/protocol/forward.h",
     "$target_gen_dir/devtools/protocol/io.cc",
@@ skipping 1804 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }