Add parentheses to appease -Wstring-concatenation

Bug: 1114873
Change-Id: I100b125bb7955a5e8d31ea21fd20eed9b451d66a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2367799
Commit-Queue: Nico Weber <thakis@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800856}

chrome/utility/importer/edge_database_reader_unittest_win.cc

@@ -266,8 +266,8 @@ TEST_F(EdgeDatabaseReaderTest, UnicodeStringsDatabaseTest) {
   const char* utf8_strings[] = {
       "\xE3\x81\x93\xE3\x81\xAB\xE3\x81\xA1\xE3\x81\xAF",
       "\xE4\xBD\xA0\xE5\xA5\xBD",
-      "\xD0\x97\xD0\xB4\xD1\x80\xD0\xB0\xD0\xB2\xD1\x81\xD1\x82\xD0\xB2\xD1\x83"
-      "\xD0\xB9\xD1\x82\xD0\xB5",
+      ("\xD0\x97\xD0\xB4\xD1\x80\xD0\xB0\xD0\xB2\xD1\x81\xD1\x82\xD0\xB2\xD1"
+       "\x83\xD0\xB9\xD1\x82\xD0\xB5"),
       "\x48\x65\x6C\x6C\x6F",
       "\xEC\x95\x88\xEB\x85\x95\xED\x95\x98\xEC\x84\xB8\xEC\x9A\x94",
   };