Revert of Revert of views: Move TOOLKIT_VIEWS definition in //ui/views/ from root.

chrome/browser/extensions/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")
 
 assert(enable_extensions)
 
@@ skipping 98 matching lines @@
                     "//chrome")
   }
 
   if (use_ash) {
     sources += [
       "api/tabs/ash_panel_contents.cc",
       "api/tabs/ash_panel_contents.h",
     ]
   }
 
+  if (use_aura) {
+    deps += [
+      "//ui/keyboard",
+      "//ui/keyboard:resources",
+    ]
+  }
+
+  if (toolkit_views) {
+    deps += [ "//ui/views" ]
+  }
+
   if (is_linux) {
     configs += [ "//build/config/linux:fontconfig" ]
     deps += [ "//dbus" ]
     if (use_x11) {
       configs += [ "//build/config/linux:x11" ]
       deps += [
         "//ui/events:events_base",
         "//ui/events/platform",
         "//ui/events/platform/x11",
       ]
@@ skipping 20 matching lines @@
 
   if (use_brlapi) {
     deps += [ "//build/config/linux:libbrlapi" ]
     sources += rebase_path(gypi_values.chrome_browser_extensions_brlapi_sources,
                            ".",
                            "//chrome")
   } else {
     sources += [ "api/braille_display_private/braille_controller_stub.cc" ]
   }
 
-  if (use_aura) {
-    deps += [
-      "//ui/keyboard",
-      "//ui/keyboard:resources",
-    ]
-  }
-
   # chromeos uses its own global_shortcut_listener, _x11 is not necessary.
   if (is_chromeos || !use_x11) {
     sources -= [
       "global_shortcut_listener_x11.cc",
       "global_shortcut_listener_x11.h",
     ]
   }
 
   if (is_win || is_mac) {
     deps += [ "//components/wifi" ]
@@ skipping 22 matching lines @@
                     "//chrome")
   }
 
   if (is_chromeos && use_ozone) {
     sources -= [ "global_shortcut_listener_chromeos.cc" ]
   }
   if (!use_ozone) {
     sources -= [ "global_shortcut_listener_ozone.cc" ]
   }
 }