Improve content test GN build

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")
 
 gypi_values = exec_script(
     "//build/gypi_to_gn.py",
     [ rebase_path("views.gyp") ],
@@ skipping 91 matching lines @@
     }
   }
 }
 
 static_library("test_support") {
   sources = gypi_values.views_test_support_sources
 
   deps = [
     ":views",
     "//base",
-    "//ipc",
+    "//ipc:test_support",
     "//skia",
     "//testing/gtest",
     "//ui/aura",
     "//ui/base",
     "//ui/compositor",
     "//ui/events",
     "//ui/events/platform",
     "//ui/gfx",
     "//ui/gfx/geometry",
     "//ui/wm",
@@ skipping 127 matching lines @@
       "//ui/compositor",
       "//ui/resources",
       "//ui/resources:ui_test_pak",
       "//ui/string",
       "//ui/wm",
     ]
   }
 }
 
 }  # if false