GN Windows component build fixes.

chrome/browser/ui/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")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("../../chrome_browser_ui.gypi") ],
                           "scope",
                           [ "../../chrome_browser_ui.gypi" ])
 
-static_library("ui") {
+source_set("ui") {
   output_name = "browser_ui"
 
   sources = []
   defines = []
   libs = []
 
   configs += [
     "//build/config/compiler:wexit_time_destructors",
     "//third_party/WebKit/public:debug_devtools",
   ]
@@ skipping 509 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }