Implement StringUTF8Adaptor::asStringPiece.

third_party/WebKit/Source/wtf/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("//testing/test.gni")
 
 # The list of files is kept in the .gypi.
 gypi_values = exec_script("//build/gypi_to_gn.py",
                           [ rebase_path("wtf.gypi") ],
                           "scope",
@@ skipping 41 matching lines @@
 
   public_configs = [
     ":wtf_config",
 
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
     "//third_party/WebKit/Source:features",
   ]
 
   public_deps = [
+    "//base",
     "//third_party/icu",
   ]
 
   if (is_win) {
     sources -= [ "ThreadingPthreads.cpp" ]
 
     cflags = [ "/wd4068" ]  # Unknown pragma.
   } else {
     # Non-Windows.
     sources -= [
@@ skipping 61 matching lines @@
     # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
     "//build/config/compiler:no_size_t_to_int_warning",
     "//third_party/WebKit/Source:config",
     "//third_party/WebKit/Source:non_test_config",
   ]
 
   deps = [
     ":wtf",
   ]
 }