Add basic Chrome interaction with the mash shelf.

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
 import("//media/media_options.gni")
@@ skipping 591 matching lines @@
                            "//chrome")
     defines += [ "USE_LIBSECRET" ]
   }
   if (use_aura) {
     sources +=
         rebase_path(gypi_values.chrome_browser_aura_sources, ".", "//chrome")
 
     # These files are only built in a GN build because they bring in
     # dependencies that don't build with GYP.
     sources += [
+      "ui/ash/launcher/chrome_mash_shelf_controller.cc",
+      "ui/ash/launcher/chrome_mash_shelf_controller.h",
       "ui/views/frame/browser_frame_mus.cc",
       "ui/views/frame/browser_frame_mus.h",
       "ui/views/frame/browser_non_client_frame_view_mus.cc",
       "ui/views/frame/browser_non_client_frame_view_mus.h",
     ]
     deps += [
       "//components/mus/public/cpp",
+      "//components/prefs",
       "//content/public/common",
+      "//mash/shelf/public/interfaces",
       "//mojo/shell/runner/common",
+      "//skia/public",
       "//ui/aura",
       "//ui/compositor",
       "//ui/keyboard",
       "//ui/keyboard:keyboard_with_content",
       "//ui/views/mus:for_component",
     ]
     defines += [ "MOJO_SHELL_CLIENT" ]
     data_deps += [ "//mash/wm" ]
   }
   if (ui_compositor_image_transport) {
@@ skipping 698 matching lines @@
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }