Fixing uninitialized variable in CTD EnvironmentOptions struct

remoting/test/chromoting_test_driver_environment.h

Index: remoting/test/chromoting_test_driver_environment.h
diff --git a/remoting/test/chromoting_test_driver_environment.h b/remoting/test/chromoting_test_driver_environment.h
index 369a4e7394335c3f2e9268bd0c353e5d4124b3a7..df2cb21e94f8800be85a3ea38e2b309fc517a0d4 100644
--- a/remoting/test/chromoting_test_driver_environment.h
+++ b/remoting/test/chromoting_test_driver_environment.h
@@ -40,7 +40,7 @@ class ChromotingTestDriverEnvironment : public testing::Environment {
     std::string host_jid;
     std::string pin;
     base::FilePath refresh_token_file_path;
-    bool use_test_environment;
+    bool use_test_environment = false;
   };
 
   explicit ChromotingTestDriverEnvironment(const EnvironmentOptions& options);