[MacViews] Implemented text context menu

ui/views/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/features.gni")
 import("//build/config/ui.gni")
 import("//testing/test.gni")
 import("//ui/base/ui_features.gni")
 import("//ui/ozone/ozone.gni")
 
@@ skipping 232 matching lines @@
     "controls/textfield/textfield_controller.cc",
     "controls/textfield/textfield_controller.h",
     "controls/textfield/textfield_model.cc",
     "controls/textfield/textfield_model.h",
     "controls/throbber.cc",
     "controls/throbber.h",
     "controls/tree/tree_view.cc",
     "controls/tree/tree_view.h",
     "controls/tree/tree_view_controller.cc",
     "controls/tree/tree_view_controller.h",
+    "controls/views_text_services_context_menu.cc",
+    "controls/views_text_services_context_menu.h",
+    "controls/views_text_services_context_menu_mac.mm",
     "debug_utils.cc",
     "debug_utils.h",
     "drag_controller.h",
     "drag_utils.cc",
     "drag_utils.h",
     "drag_utils_mac.mm",
     "event_monitor.h",
     "event_monitor_mac.h",
     "event_monitor_mac.mm",
     "focus/external_focus_tracker.cc",
@@ skipping 354 matching lines @@
           "widget/desktop_aura/desktop_window_tree_host_ozone.cc",
         ]
       }
       if (is_linux) {
         sources += [ "style/platform_style_linux.cc" ]
       }
     }
   }
 
   if (is_mac) {
+    sources -= [ "controls/views_text_services_context_menu.cc" ]
     deps += [
       "//ui/accelerated_widget_mac",
       "//ui/events:dom_keycode_converter",
     ]
     libs = [
       "AppKit.framework",
       "CoreGraphics.framework",
       "Foundation.framework",
       "QuartzCore.framework",  # Required by bridged_native_widget.mm.
     ]
@@ skipping 382 matching lines @@
       "//ui/base:test_support",
       "//ui/compositor",
       "//ui/events:test_support",
       "//ui/gl:test_support",
       "//ui/resources",
       "//ui/resources:ui_test_pak",
       "//ui/strings",
     ]
   }
 }