GTTF: Update --help for new test launcher.

base/test/launcher/unit_test_launcher.cc

Index: base/test/launcher/unit_test_launcher.cc
diff --git a/base/test/launcher/unit_test_launcher.cc b/base/test/launcher/unit_test_launcher.cc
index c9924efa582ec388a7325d6db59d1134e3302b87..4cedcacd731f6cb8000c3d30bc4ca1b1ecf1fcf0 100644
--- a/base/test/launcher/unit_test_launcher.cc
+++ b/base/test/launcher/unit_test_launcher.cc
@@ -44,19 +44,42 @@ void PrintUsage() {
           "Runs tests using the gtest framework, each batch of tests being\n"
           "run in their own process. Supported command-line flags:\n"
           "\n"
-          "  --single-process-tests\n"
-          "    Runs the tests and the launcher in the same process. Useful\n"
-          "    for debugging a specific test in a debugger.\n"
-          "  --test-launcher-jobs=N\n"
-          "    Sets the number of parallel test jobs to N.\n"
-          "  --test-launcher-batch-limit=N\n"
-          "    Sets the limit of test batch to run in a single process to N.\n"
+          " Common flags:\n"
           "  --gtest_filter=...\n"
           "    Runs a subset of tests (see --gtest_help for more info).\n"
+          "\n"
           "  --help\n"
           "    Shows this message.\n"
+          "\n"
           "  --gtest_help\n"
-          "    Shows the gtest help message.\n");
+          "    Shows the gtest help message.\n"
+          "\n"
+          "  --test-launcher-jobs=N\n"
+          "    Sets the number of parallel test jobs to N.\n"
+          "\n"
+          "  --single-process-tests\n"
+          "    Runs the tests and the launcher in the same process. Useful\n"
+          "    for debugging a specific test in a debugger.\n"
+          "\n"
+          " Other flags:\n"
+          "  --test-launcher-batch-limit=N\n"
+          "    Sets the limit of test batch to run in a single process to N.\n"
+          "\n"
+          "  --test-launcher-retry-limit=N\n"
+          "    Sets the limit of test retries on failures to N.\n"
+          "\n"
+          "  --test-launcher-summary-output=PATH\n"
+          "    Saves a JSON machine-readable summary of the run.\n"
+          "\n"
+          "  --test-launcher-print-test-stdio=auto|always|never\n"
+          "    Controls when full test output is printed.\n"
+          "    auto means to print it when the test failed.\n"
+          "\n"
+          "  --test-launcher-total-shards=N\n"
+          "    Sets the total number of shards to N.\n"
+          "\n"
+          "  --test-launcher-shard-index=N\n"
+          "    Sets the shard index to run to N (from 0 to TOTAL - 1).\n");
   fflush(stdout);
 }