Decompose //extensions/browser/BUILD.gn

extensions/renderer/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")
 
 assert(enable_extensions)
 
 # GYP version: extensions/extensions.gyp:extensions_renderer
 source_set("renderer") {
@@ skipping 264 matching lines @@
     "utils_unittest.cc",
   ]
 
   deps = [
     ":renderer",
     "//base",
     "//device/serial:test_support",
     "//extensions:extensions_renderer_resources",
 
     # TODO(brettw) these tests should not be including headers from browser.
-    "//extensions/browser",
+    "//extensions/browser/mojo",
     "//extensions/common",
     "//gin",
     "//mojo/edk/js",
     "//testing/gtest",
     "//third_party/WebKit/public:blink",
     "//ui/base",
   ]
 
   if (enable_wifi_display && proprietary_codecs) {
     sources += [
       "api/display_source/wifi_display/wifi_display_elementary_stream_descriptor_unittest.cc",
       "api/display_source/wifi_display/wifi_display_media_packetizer_unittest.cc",
     ]
   }
 }