Fix Objective-C test pods for Cronet tests
diff --git a/templates/gRPC-Core.podspec.template b/templates/gRPC-Core.podspec.template
index 12d06a7..6dd7341 100644
--- a/templates/gRPC-Core.podspec.template
+++ b/templates/gRPC-Core.podspec.template
@@ -162,12 +162,16 @@
       ss.source_files = 'include/grpc/grpc_cronet.h'
     end
 
+    s.subspec 'Cronet-Implement' do |ss|
+      ss.header_mappings_dir = '.'
+      ss.source_files = 'src/core/ext/transport/cronet/client/secure/cronet_channel_create.c',
+                        'src/core/ext/transport/cronet/transport/cronet_transport.c'
+    end
+
     s.subspec 'Cronet-Tests' do |ss|
       ss.header_mappings_dir = '.'
 
-      ss.source_files = 'src/core/ext/transport/cronet/client/secure/cronet_channel_create.c',
-                        'src/core/ext/transport/cronet/transport/cronet_transport.c',
-                        'test/core/end2end/cq_verifier.{c,h}',
+      ss.source_files = 'test/core/end2end/cq_verifier.{c,h}',
                         'test/core/end2end/end2end_tests.{c,h}',
                         'test/core/end2end/tests/*.{c,h}',
                         'test/core/end2end/data/*.{c,h}',