Rewrite clipboard write IPC handling to be easier to understand.

chrome/common/net/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/crypto.gni")
 
 # GYP version: chrome/chrome_common.gypi:common_net
 static_library("net") {
   sources = [
     "net_error_info.cc",
@@ skipping 10 matching lines @@
   ]
 
   deps = [
     "//base",
     "//chrome:resources",
     "//chrome:strings",
     "//crypto",
     "//net",
     "//net:net_resources",
     "//third_party/icu",
+    "//ui/base/",
   ]
 
   if (is_ios) {
     sources -= [
       "net_resource_provider.cc",
       "x509_certificate_model.cc",
     ]
   } else {
     deps += [ "//gpu/ipc" ]
   }
@@ skipping 14 matching lines @@
       "x509_certificate_model.cc",
       "x509_certificate_model_openssl.cc",
     ]
     deps += [ "//third_party/boringssl" ]
   }
 
   if (is_win) {
     cflags = [ "/wd4267" ]
   }
 }