Replace forward_dependent_configs with public_deps

google_apis/gcm/BUILD.gn

Index: google_apis/gcm/BUILD.gn
diff --git a/google_apis/gcm/BUILD.gn b/google_apis/gcm/BUILD.gn
index 9d140f30398019dd7605f7063223d82d43681b05..d21a0573305e9a891bb6002d189df90b41c23a9a 100644
--- a/google_apis/gcm/BUILD.gn
+++ b/google_apis/gcm/BUILD.gn
@@ -45,16 +45,16 @@ component("gcm") {
 
   defines = [ "GCM_IMPLEMENTATION" ]
 
-  deps = [
+  public_deps = [
     ":proto",
+  ]
+  deps = [
     "//base",
     "//base/third_party/dynamic_annotations",
     "//net",
     "//third_party/leveldatabase",
     "//url",
   ]
-
-  forward_dependent_configs_from = [ ":proto" ]
 }
 
 proto_library("proto") {
@@ -83,13 +83,13 @@ static_library("test_support") {
     "monitoring/fake_gcm_stats_recorder.h",
   ]
 
-  deps = [
+  public_deps = [
     ":gcm",
+  ]
+  deps = [
     "//base",
     "//testing/gtest",
   ]
-
-  forward_dependent_configs_from = [ ":gcm" ]
 }
 
 # A standalone MCS (mobile connection server) client.