Start untangling the avatar switcher from BrowserNonClientFrameView

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")
 import("//chrome/common/features.gni")
 
 gypi_values = exec_script("//build/gypi_to_gn.py",
@@ skipping 266 matching lines @@
   }
   if (is_win || is_mac || is_desktop_linux) {
     sources += rebase_path(gypi_values.chrome_browser_ui_desktop_sources,
                            ".",
                            "//chrome")
     if (is_mac && !mac_views_browser) {
       sources -= [
         # This is not explicitly excluded in GYP, but I think the static
         # library linking rules means it's never referenced when compiling in
         # non-Views mode on Mac. It appears not to link in that case.
+        "views/frame/avatar_button_bridge.cc",
+        "views/frame/avatar_button_bridge.h",
         "views/profiles/new_avatar_button.cc",
         "views/profiles/new_avatar_button.h",
       ]
     }
   }
   if (use_aura) {
     sources +=
         rebase_path(gypi_values.chrome_browser_ui_aura_sources, ".", "//chrome")
     deps += [
       # aura uses some of ash resources.
@@ skipping 309 matching lines @@
     "//chrome/browser",
     "//content/public/browser",
     "//content/public/common",
     "//content/test:test_support",
     "//net:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/base",
   ]
 }