Avoid duplicate functions: one AddStringToDigestor is enough

third_party/WebKit/Source/core/inspector/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("//third_party/WebKit/Source/bindings/bindings.gni")
 import("//third_party/WebKit/Source/core/core.gni")
 import("//third_party/inspector_protocol/inspector_protocol.gni")
 import("//v8/gni/v8.gni")
 
 _inspector_protocol_dir = "//third_party/inspector_protocol"
@@ skipping 66 matching lines @@
     "NetworkResourcesData.cpp",
     "NetworkResourcesData.h",
     "ThreadDebugger.cpp",
     "ThreadDebugger.h",
     "V8InspectorString.cpp",
     "V8InspectorString.h",
     "WorkerInspectorController.cpp",
     "WorkerInspectorController.h",
     "WorkerThreadDebugger.cpp",
     "WorkerThreadDebugger.h",
+    "addStringToDigestor.cpp",
+    "addStringToDigestor.h",
   ]
 
   configs += [
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
   ]
 }
 
 # inspector protocol -----------------------------------------------------------
 
@@ skipping 130 matching lines @@
   outputs = [
     output_file,
   ]
 
   args = [
     rebase_path("browser_protocol.json", root_build_dir),
     rebase_path(v8_inspector_js_protocol, root_build_dir),
     rebase_path(output_file, root_build_dir),
   ]
 }