Moving gRPC support interfaces out of cronet and into a new component.

components/cronet/ios/BUILD.gn

 # Copyright 2015 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/buildflag_header.gni")
 import("//build/config/ios/rules.gni")
 import("//build/config/mac/symbols.gni")
 import("//build/mac/tweak_info_plist.gni")
 import("//build/util/process_version.gni")
 import("//build/util/version.gni")
+import("//components/grpc_support/include/headers.gni")
 import("//testing/test.gni")
 import("//url/features.gni")
 
 assert(!is_component_build, "Cronet requires static library build.")
 
 declare_args() {
   cronet_enable_data_reduction_proxy_support = false
 }
 
 process_version("cronet_version_header") {
   template_file = "//components/cronet/version.h.in"
   sources = [
     "//chrome/VERSION",
   ]
   output = "$target_gen_dir/version.h"
   extra_args = [
     "-e",
     "VERSION_FULL=\"%s.%s.%s.%s\" % (MAJOR,MINOR,BUILD,PATCH)",
   ]
 }
 
 source_set("cronet_sources") {
   deps = [
     ":cronet_version_header",
     "//base:base",
+    "//components/grpc_support",
     "//components/metrics:metrics",
     "//components/metrics/proto:proto",
     "//components/prefs:prefs",
     "//ios/net:net",
     "//ios/web:user_agent",
     "//net",
     "//url",
   ]
 
   sources = [
     "../histogram_manager.cc",
     "../histogram_manager.h",
     "../stale_host_resolver.cc",
     "../stale_host_resolver.h",
     "../url_request_context_config.cc",
     "../url_request_context_config.h",
     "Cronet.h",
     "Cronet.mm",
-    "cronet_bidirectional_stream.cc",
-    "cronet_bidirectional_stream.h",
-    "cronet_c_for_grpc.cc",
-    "cronet_c_for_grpc.h",
     "cronet_environment.cc",
     "cronet_environment.h",
   ]
 
+  include_dirs = [ "//components/grpc_support/include" ]
+
   if (!use_platform_icu_alternatives) {
     deps += [ "//base:i18n" ]
   }
 }
 
 # Tweak |info_plist| with current version and revision.
 tweak_info_plist("tweak_cronet_plist") {
   info_plist = "Info.plist"
   args = [ "--platform=ios" ]
 }
@@ skipping 69 matching lines @@
 
   deps = [
     ":cronet_framework_resources",
     ":cronet_sources",
     "//base",
     "//net:net",
   ]
 
   libs = [ "UIKit.Framework" ]
 
-  public_headers = [
-    "Cronet.h",
-    "cronet_c_for_grpc.h",
+  include_dirs = [ "//components/grpc_support/include" ]
+
+  public_deps = [
+    "//components/grpc_support",
   ]
 
+  public_headers = [ "Cronet.h" ]
+  public_headers += grpc_public_headers
+
   sources = [
     "Cronet.h",
-    "cronet_c_for_grpc.h",
   ]
 
   configs -= [ "//build/config/compiler:default_symbols" ]
   configs += [ "//build/config/compiler:symbols" ]
 }
 
 test("cronet_unittests") {
   testonly = true
 
   sources = [
@@ skipping 52 matching lines @@
     ]
   }
 
   group("cronet_package") {
     deps = [
       ":cronet_package_copy",
       ":generate_license",
     ]
   }
 }