[iOS/GN] Convert //ios/third_party/earl_grey to build with GN.

build/config/mac/rules.gni

 # 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/toolchain/toolchain.gni")
 
 # This is used as the base template for both iOS and Mac frameworks..
 #
 # Arguments
 #
@@ skipping 67 matching lines @@
                              "public_deps",
                              "testonly",
                            ])
 
     if (defined(_framework_version)) {
       visibility = [ ":$_target_name" ]
     } else {
       forward_variables_from(invoker, [ "visibility" ])
     }
 
-    if (!defined(deps)) {
-      deps = []
+    if (!defined(public_deps)) {
+      public_deps = []
     }
-    deps += [ ":$_shared_library_bundle_data" ]
+    public_deps += [ ":$_shared_library_bundle_data" ]
 
     bundle_root_dir = _framework_root_dir
     bundle_resources_dir = "$bundle_root_dir/Resources"
     bundle_executable_dir = "$bundle_root_dir"
   }
 
   if (defined(_framework_version)) {
     action(_target_name) {
       forward_variables_from(invoker,
                              [
                                "visibility",
                                "testonly",
                              ])
       script = "$root_out_dir/gyp-mac-tool"
       outputs = [
         "$root_out_dir/$_framework_name/Versions/Current",
       ]
       args = [
         "package-framework",
         "$_framework_name",
         "$_framework_version",
       ]
-      deps = [
+      public_deps = [
         ":$_framework_target",
       ]
     }
   }
 }
 
 # Template to package a shared library into a Mac framework bundle.
 #
 # Arguments
 #
@@ skipping 36 matching lines @@
 
   framework_bundle(target_name) {
     forward_variables_from(invoker, "*", [ "info_plist" ])
 
     if (!defined(deps)) {
       deps = []
     }
     deps += [ ":$_info_plist_bundle_data" ]
   }
 }