Allow LB policy name to be matched in a case-insensitive manner.

src/core/ext/client_channel/lb_policy_registry.c

@@ -35,6 +35,8 @@
 
 #include <string.h>
 
+#include "src/core/lib/support/string.h"
+
 #define MAX_POLICIES 10
 
 static grpc_lb_policy_factory *g_all_of_the_lb_policies[MAX_POLICIES];
@@ -52,8 +54,8 @@ void grpc_lb_policy_registry_shutdown(void) {
 void grpc_register_lb_policy(grpc_lb_policy_factory *factory) {
   int i;
   for (i = 0; i < g_number_of_lb_policies; i++) {
-    GPR_ASSERT(0 != strcmp(factory->vtable->name,
-                           g_all_of_the_lb_policies[i]->vtable->name));
+    GPR_ASSERT(0 != gpr_stricmp(factory->vtable->name,
+                                g_all_of_the_lb_policies[i]->vtable->name));
   }
   GPR_ASSERT(g_number_of_lb_policies != MAX_POLICIES);
   grpc_lb_policy_factory_ref(factory);
@@ -66,7 +68,7 @@ static grpc_lb_policy_factory *lookup_factory(const char *name) {
   if (name == NULL) return NULL;
 
   for (i = 0; i < g_number_of_lb_policies; i++) {
-    if (0 == strcmp(name, g_all_of_the_lb_policies[i]->vtable->name)) {
+    if (0 == gpr_stricmp(name, g_all_of_the_lb_policies[i]->vtable->name)) {
       return g_all_of_the_lb_policies[i];
     }
   }

test/core/client_channel/lb_policies_test.c

@@ -554,7 +554,7 @@ static grpc_channel *create_client(const servers_fixture *f) {
   arg_array[0].value.integer = RETRY_TIMEOUT;
   arg_array[1].type = GRPC_ARG_STRING;
   arg_array[1].key = GRPC_ARG_LB_POLICY_NAME;
-  arg_array[1].value.string = "round_robin";
+  arg_array[1].value.string = "ROUND_ROBIN";
   args.num_args = 2;
   args.args = arg_array;
 
@@ -669,7 +669,7 @@ static void test_get_channel_info() {
   grpc_arg arg;
   arg.type = GRPC_ARG_STRING;
   arg.key = GRPC_ARG_SERVICE_CONFIG;
-  arg.value.string = "{\"lb_policy_name\": \"round_robin\"}";
+  arg.value.string = "{\"loadBalancingPolicy\": \"ROUND_ROBIN\"}";
   grpc_channel_args *args = grpc_channel_args_copy_and_add(NULL, &arg, 1);
   channel = grpc_insecure_channel_create("ipv4:127.0.0.1:1234", args, NULL);
   grpc_channel_args_destroy(args);