Add trace event for complete network request

third_party/WebKit/Source/platform/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")
 import("//testing/libfuzzer/fuzzer_test.gni")
 import("//testing/test.gni")
 import("//third_party/WebKit/Source/build/scripts/scripts.gni")
 import("//third_party/WebKit/Source/config.gni")
@@ skipping 1287 matching lines @@
     "text/UnicodeRange.h",
     "text/UnicodeUtilities.cpp",
     "text/UnicodeUtilities.h",
     "text/linux/HyphenationLinux.cpp",
     "text/mac/HyphenationMac.cpp",
     "text/win/HyphenationWin.cpp",
     "threading/BackgroundTaskRunner.cpp",
     "threading/BackgroundTaskRunner.h",
     "tracing/MemoryCacheDumpProvider.cpp",
     "tracing/MemoryCacheDumpProvider.h",
+    "tracing/NetworkInstrumentation.cpp",
+    "tracing/NetworkInstrumentation.h",
     "tracing/TraceEvent.h",
     "tracing/TracedValue.cpp",
     "tracing/TracedValue.h",
     "tracing/web_memory_allocator_dump.cc",
     "tracing/web_memory_allocator_dump.h",
     "tracing/web_process_memory_dump.cc",
     "tracing/web_process_memory_dump.h",
     "transforms/AffineTransform.cpp",
     "transforms/AffineTransform.h",
     "transforms/IdentityTransformOperation.h",
@@ skipping 662 matching lines @@
     "//third_party/WebKit/Source:inside_blink",
   ]
 
   deps = [
     ":test_support",
     "//cc/surfaces:surface_id",
     "//testing/gmock",
     "//testing/gtest",
   ]
 }