Enable exporting SSLKEYLOGFILE on Android w/ command line arguments

net/socket/ssl_client_socket_openssl.cc

Index: net/socket/ssl_client_socket_openssl.cc
diff --git a/net/socket/ssl_client_socket_openssl.cc b/net/socket/ssl_client_socket_openssl.cc
index 1e0d799e6a731167e86489a9449142eb78752a91..23ea8cb8a49cb9ea5c2c2d52a9ed262251142b74 100644
--- a/net/socket/ssl_client_socket_openssl.cc
+++ b/net/socket/ssl_client_socket_openssl.cc
@@ -222,6 +222,18 @@ class SSLClientSocketOpenSSL::SSLContext {
  private:
   friend struct base::DefaultSingletonTraits<SSLContext>;
 
+  void SetKeyLogFile(std::string ssl_keylog_file) {
+    DCHECK(!ssl_keylog_file.empty());
+    crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
+    BIO* bio = BIO_new_file(ssl_keylog_file.c_str(), "a");
+    if (!bio) {
+      LOG(ERROR) << "Failed to open " << ssl_keylog_file;
+      ERR_print_errors_cb(&LogErrorCallback, NULL);
+    } else {
+      SSL_CTX_set_keylog_bio(ssl_ctx_.get(), bio);
+    }
+  }
+
   SSLContext() : session_cache_(SSLClientSessionCacheOpenSSL::Config()) {
     crypto::EnsureOpenSSLInit();
     ssl_socket_data_index_ = SSL_get_ex_new_index(0, 0, 0, 0, 0);
@@ -250,14 +262,7 @@ class SSLClientSocketOpenSSL::SSLContext {
     std::string ssl_keylog_file;
     if (env->GetVar("SSLKEYLOGFILE", &ssl_keylog_file) &&
         !ssl_keylog_file.empty()) {
-      crypto::OpenSSLErrStackTracer err_tracer(FROM_HERE);
-      BIO* bio = BIO_new_file(ssl_keylog_file.c_str(), "a");
-      if (!bio) {
-        LOG(ERROR) << "Failed to open " << ssl_keylog_file;
-        ERR_print_errors_cb(&LogErrorCallback, NULL);
-      } else {
-        SSL_CTX_set_keylog_bio(ssl_ctx_.get(), bio);
-      }
+      SetKeyLogFile(ssl_keylog_file);
     }
   }