Be consistent with Java

src/core/ext/transport/chttp2/transport/chttp2_transport.cc

@@ -1783,7 +1783,7 @@ void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx,
         exec_ctx, t,
         grpc_error_set_int(
             GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many pings"),
-            GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM));
+            GRPC_ERROR_INT_GRPC_STATUS, GRPC_STATUS_UNAVAILABLE));
   }
 }
 

test/core/end2end/tests/bad_ping.c

@@ -202,7 +202,7 @@ static void test_bad_ping(grpc_end2end_test_config config) {
 
   // The connection should be closed immediately after the misbehaved pings,
   // the in-progress RPC should fail.
-  GPR_ASSERT(status == GRPC_STATUS_RESOURCE_EXHAUSTED);
+  GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
   GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
   validate_host_override_string("foo.test.google.fr:1234", call_details.host,
                                 config);