Componentize sad_tab

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",
@@ skipping 257 matching lines @@
       "//chrome/browser/ui/views",
       "//components/feedback/proto",
       "//third_party/libusb",
       "//ui/events",
     ]
     sources += rebase_path(gypi_values.chrome_browser_ui_android_sources,
                            ".", "//chrome")
 
     defines += [ "CHROME_BUILD_ID=" + android_chrome_build_id ]
   } else {  # Non-Android.
+    deps += [
+      "//components/sad_tab",
+    ]
     sources += rebase_path(gypi_values.chrome_browser_ui_non_android_sources,
                            ".", "//chrome")
   }
 
   if (is_mac) {
     sources += rebase_path(gypi_values.chrome_browser_ui_mac_sources,
                            ".", "//chrome")
     sources -= [
       # Mac has its own way of drawing tabs.
       "tabs/tab_resources.cc",
@@ skipping 164 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }