Add gn dependency on rtc_task_runner.

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("//ppapi/features/features.gni")
 import("//printing/features/features.gni")
 import("//third_party/WebKit/public/public_features.gni")
@@ skipping 1500 matching lines @@
       "webrtc/webrtc_internals_message_handler.h",
       "webrtc/webrtc_internals_ui.cc",
       "webrtc/webrtc_internals_ui.h",
       "webrtc/webrtc_internals_ui_observer.h",
     ]
 
     deps += [
       "//jingle:jingle_glue",
       "//third_party/libjingle/webrtc:libjingle_webrtc",
       "//third_party/webrtc/base:rtc_base",
+      "//third_party/webrtc/base:rtc_task_runner",

[Sergey Ulanov, 2017/02/16 19:38:13]

content code shouldn't depend on rtc_task_runner directly. I think you could
just make //jingle:notifier depend on it. I think that's the only place in
chromium that should depend on task_runner.

[nisse-chromium (ooo August 14), 2017/02/20 09:51:32]

Dropped this dependency.

       "//third_party/webrtc/media:rtc_media_base",
       "//third_party/webrtc/modules/desktop_capture:primitives",
     ]
   }
 
   # Desktop screen capture implementations, conditionally built depending on
   # the available implementations for each platform.
   if (is_linux || is_mac || is_win) {
     defines += [ "ENABLE_SCREEN_CAPTURE=1" ]
     sources += [
@@ skipping 486 matching lines @@
   if (!is_component_build) {
     public_deps = [
       ":browser",
     ]
   } else {
     public_deps = [
       "//third_party/leveldatabase",
     ]
   }
 }