Update from https://crrev.com/306655

skia/BUILD.gn

 # Copyright (c) 2013 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")
 if (cpu_arch == "arm") {
   import("//build/config/arm.gni")
 }
 
@@ skipping 272 matching lines @@
     "ext/platform_device.h",
     "ext/platform_device_linux.cc",
     "ext/platform_device_mac.cc",
     "ext/platform_device_win.cc",
     "ext/recursive_gaussian_convolution.cc",
     "ext/recursive_gaussian_convolution.h",
     "ext/refptr.h",
     "ext/SkDiscardableMemory_chrome.h",
     "ext/SkDiscardableMemory_chrome.cc",
     "ext/SkMemory_new_handler.cpp",
-    "ext/skia_trace_shim.h",
     "ext/skia_utils_base.cc",
     "ext/skia_utils_base.h",
     "ext/skia_utils_ios.mm",
     "ext/skia_utils_ios.h",
     "ext/skia_utils_mac.mm",
     "ext/skia_utils_mac.h",
     "ext/skia_utils_win.cc",
     "ext/skia_utils_win.h",
     "ext/vector_canvas.h",
     "ext/vector_platform_device_emf_win.cc",
@@ skipping 397 matching lines @@
     ":skia_library_config",
     "//build/config/compiler:no_chromium_code"
   ]
 
   deps = [
     "//base",
   ]
 
   visibility = [ ":skia" ]
 }