Revert of Only expose gflags target in non-Chromium and non-fuzzer builds.

third_party/gflags/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
-import("../../webrtc/build/webrtc.gni")
+if (is_win) {
+  gflags_gen_arch_root = "gen/win"
+} else {
+  gflags_gen_arch_root = "gen/posix"
+}
 
-# gflags can only be used by targets that are not built in Chromium, since
-# Chromium doesn't have gflags as a dependency).
-if (!build_with_chromium && !use_libfuzzer) {
+config("gflags_config") {
+  include_dirs = [
+    "$gflags_gen_arch_root/include",  # For configured files.
+    "src/src",  # For everything else.
+  ]
+
+  defines = [
+    # These macros exist so flags and symbols are properly exported when
+    # building DLLs. Since we don't build DLLs, we need to disable them.
+    "GFLAGS_DLL_DECL=",
+    "GFLAGS_DLL_DECLARE_FLAG=",
+    "GFLAGS_DLL_DEFINE_FLAG=",
+  ]
+
+  # GN orders flags on a target before flags from configs. The default config
+  # adds -Wall, and this flag have to be after -Wall -- so they need to
+  # come from a config and can't be on the target directly.
+  if (is_clang) {
+    cflags = [ "-Wno-unused-local-typedef" ]
+  }
+}
+
+source_set("gflags") {
+  cflags = []
+  sources = [
+    "src/src/gflags.cc",
+    "src/src/gflags_completions.cc",
+    "src/src/gflags_reporting.cc",
+  ]
   if (is_win) {
-    gflags_gen_arch_root = "gen/win"
-  } else {
-    gflags_gen_arch_root = "gen/posix"
+    sources += [ "src/src/windows_port.cc" ]
+
+    cflags += [
+      "/wd4005",  # WIN32_LEAN_AND_MEAN.
+      "/wd4267",  # Conversion from size_t to "type".
+    ]
   }
 
-  config("gflags_config") {
-    include_dirs = [
-      "$gflags_gen_arch_root/include",  # For configured files.
-      "src/src",  # For everything else.
-    ]
+  include_dirs = [
+    "$gflags_gen_arch_root/include/gflags",  # For configured files.
+    "$gflags_gen_arch_root/include/private",  # For config.h
+  ]
 
-    defines = [
-      # These macros exist so flags and symbols are properly exported when
-      # building DLLs. Since we don't build DLLs, we need to disable them.
-      "GFLAGS_DLL_DECL=",
-      "GFLAGS_DLL_DECLARE_FLAG=",
-      "GFLAGS_DLL_DEFINE_FLAG=",
-    ]
+  public_configs = [ ":gflags_config" ]
 
-    # GN orders flags on a target before flags from configs. The default config
-    # adds -Wall, and this flag have to be after -Wall -- so they need to
-    # come from a config and can't be on the target directly.
-    if (is_clang) {
-      cflags = [ "-Wno-unused-local-typedef" ]
-    }
+  configs -= [ "//build/config/compiler:chromium_code" ]
+  configs += [ "//build/config/compiler:no_chromium_code" ]
+
+  if (is_win) {
+    configs -= [ "//build/config/win:unicode" ]
   }
 
-  source_set("gflags") {
-    testonly = true
-    cflags = []
-    sources = [
-      "src/src/gflags.cc",
-      "src/src/gflags_completions.cc",
-      "src/src/gflags_reporting.cc",
-    ]
-    if (is_win) {
-      sources += [ "src/src/windows_port.cc" ]
-
-      cflags += [
-        "/wd4005",  # WIN32_LEAN_AND_MEAN.
-        "/wd4267",  # Conversion from size_t to "type".
-      ]
-    }
-
-    include_dirs = [
-      "$gflags_gen_arch_root/include/gflags",  # For configured files.
-      "$gflags_gen_arch_root/include/private",  # For config.h
-    ]
-
-    public_configs = [ ":gflags_config" ]
-
-    configs -= [ "//build/config/compiler:chromium_code" ]
-    configs += [ "//build/config/compiler:no_chromium_code" ]
-
-    if (is_win) {
-      configs -= [ "//build/config/win:unicode" ]
-    }
-
-    if (is_clang) {
-      # TODO(andrew): Look into fixing this warning upstream:
-      # http://code.google.com/p/webrtc/issues/detail?id=760
-      configs -= [ "//build/config/clang:extra_warnings" ]
-      cflags += [ "-Wno-microsoft-include" ]
-    }
+  if (is_clang) {
+    # TODO(andrew): Look into fixing this warning upstream:
+    # http://code.google.com/p/webrtc/issues/detail?id=760
+    configs -= [ "//build/config/clang:extra_warnings" ]
+    cflags += [ "-Wno-microsoft-include" ]
   }
 }