Use new GN features in the build.

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")
 import("//testing/test.gni")
 if (current_cpu == "arm") {
   import("//build/config/arm.gni")
 }
@@ skipping 124 matching lines @@
     "//third_party/skia/include/pipe",
     "//third_party/skia/include/ports",
     "//third_party/skia/include/utils",
   ]
 
   defines = gypi_blink_skia_defines.blink_skia_defines
   defines += gypi_skia_defines.skia_for_chromium_defines
 
   defines += []
 
-  if (component_mode == "shared_library") {
+  if (is_component_build) {
     defines += [
       "SKIA_DLL",
       "GR_GL_IGNORE_ES3_MSAA=0",
     ]
   }
 
   if (skia_support_gpu) {
     include_dirs += [
       "//third_party/skia/include/gpu",
       "//third_party/skia/src/gpu",
@@ skipping 33 matching lines @@
   ]
   if (is_mac || is_ios) {
     include_dirs += [ "//third_party/skia/include/utils/mac" ]
   }
   if (is_mac) {
     include_dirs += [ "//third_party/skia/include/utils/ios" ]
   }
 
   defines = []
 
-  if (component_mode == "shared_library") {
+  if (is_component_build) {
     defines += [ "SKIA_IMPLEMENTATION=1" ]
   }
 
   if (current_cpu == "arm") {
     if (arm_use_neon) {
       defines += [ "SK_ARM_HAS_NEON" ]
     } else if (arm_optionally_use_neon) {
       defines += [ "SK_ARM_HAS_OPTIONAL_NEON" ]
     }
   }
@@ skipping 431 matching lines @@
       "tools/filter_fuzz_stub/filter_fuzz_stub.cc",
     ]
 
     deps = [
       ":skia",
       "//base",
       "//base/test:test_support",
     ]
   }
 }