Add FakeDisplayDelegate for off device usage.

ui/display/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/ui.gni")
 import("//testing/test.gni")
 
 component("display") {
   sources = [
     "android/screen_android.cc",
     "chromeos/apply_content_protection_task.cc",
     "chromeos/apply_content_protection_task.h",
     "chromeos/configure_displays_task.cc",
     "chromeos/configure_displays_task.h",
     "chromeos/display_configurator.cc",
     "chromeos/display_configurator.h",
     "chromeos/display_layout_manager.h",
     "chromeos/display_snapshot_virtual.cc",
     "chromeos/display_snapshot_virtual.h",
     "chromeos/display_util.cc",
     "chromeos/display_util.h",
     "chromeos/query_content_protection_task.cc",
     "chromeos/query_content_protection_task.h",
     "chromeos/update_display_configuration_task.cc",
     "chromeos/update_display_configuration_task.h",
-    "chromeos/x11/display_mode_x11.cc",
-    "chromeos/x11/display_mode_x11.h",
-    "chromeos/x11/display_snapshot_x11.cc",
-    "chromeos/x11/display_snapshot_x11.h",
-    "chromeos/x11/display_util_x11.cc",
-    "chromeos/x11/display_util_x11.h",
-    "chromeos/x11/native_display_delegate_x11.cc",
-    "chromeos/x11/native_display_delegate_x11.h",
-    "chromeos/x11/native_display_event_dispatcher_x11.cc",
-    "chromeos/x11/native_display_event_dispatcher_x11.h",
     "display.cc",
     "display.h",
     "display_change_notifier.cc",
     "display_change_notifier.h",
     "display_export.h",
     "display_finder.cc",
     "display_finder.h",
     "display_list.cc",
     "display_list.h",
     "display_observer.cc",
     "display_observer.h",
     "display_switches.cc",
     "display_switches.h",
+    "fake_display_delegate.cc",
+    "fake_display_delegate.h",
+    "fake_display_snapshot.cc",
+    "fake_display_snapshot.h",
     "ios/screen_ios.mm",
     "mac/screen_mac.mm",
     "manager/display_layout.cc",
     "manager/display_layout.h",
     "manager/display_layout_builder.cc",
     "manager/display_layout_builder.h",
     "manager/display_layout_store.cc",
     "manager/display_layout_store.h",
     "manager/display_manager_utilities.cc",
     "manager/display_manager_utilities.h",
@@ skipping 20 matching lines @@
 
   deps = [
     "//base",
     "//ui/display/types",
     "//ui/display/util",
     "//ui/gfx",
     "//ui/gfx/geometry",
   ]
 
   if (is_chromeos && use_x11) {
-    configs += [
-      "//build/config/linux:x11",
-      "//build/config/linux:xext",
-      "//build/config/linux:xi",
-      "//build/config/linux:xrandr",
-    ]
-    deps += [ "//ui/events/platform" ]
-  }
-
-  deps += []
-  if (use_x11) {
-    deps += [ "//ui/gfx/x" ]
-  }
-
-  if (is_chromeos && use_ozone) {
-    sources -= [
+    sources += [
       "chromeos/x11/display_mode_x11.cc",
       "chromeos/x11/display_mode_x11.h",
       "chromeos/x11/display_snapshot_x11.cc",
       "chromeos/x11/display_snapshot_x11.h",
       "chromeos/x11/display_util_x11.cc",
       "chromeos/x11/display_util_x11.h",
       "chromeos/x11/native_display_delegate_x11.cc",
       "chromeos/x11/native_display_delegate_x11.h",
       "chromeos/x11/native_display_event_dispatcher_x11.cc",
       "chromeos/x11/native_display_event_dispatcher_x11.h",
     ]
+
+    configs += [
+      "//build/config/linux:x11",
+      "//build/config/linux:xext",
+      "//build/config/linux:xi",
+      "//build/config/linux:xrandr",
+    ]
+
+    deps += [ "//ui/events/platform" ]
   }
+
+  if (use_x11) {
+    deps += [ "//ui/gfx/x" ]
+  }
+
   if (!use_aura) {
     sources -= [ "screen_aura.cc" ]
   }
   if (is_android && use_aura) {
     sources -= [ "android/screen_android.cc" ]
   }
   if (is_mac) {
     libs = [
       "AppKit.framework",
       "CoreGraphics.framework",
@@ skipping 104 matching lines @@
     sources -= [ "display_change_notifier_unittest.cc" ]
   }
 
   if (is_chromeos && use_ozone) {
     sources -= [
       "chromeos/x11/display_util_x11_unittest.cc",
       "chromeos/x11/native_display_event_dispatcher_x11_unittest.cc",
     ]
   }
 }