i18n of Zoom % to use locally correct numeric glyphs

base/i18n/number_formatting.h

Index: base/i18n/number_formatting.h
diff --git a/base/i18n/number_formatting.h b/base/i18n/number_formatting.h
index bdb862f21a67754481cebec79b87a044dbb21be5..9636bf4d1baaa07a277cd48d9d9f230f11a13b64 100644
--- a/base/i18n/number_formatting.h
+++ b/base/i18n/number_formatting.h
@@ -13,8 +13,7 @@
 namespace base {
 
 // Return a number formatted with separators in the user's locale.
-// Ex: FormatNumber(1234567)
-//         => "1,234,567" in English, "1.234.567" in German
+// Ex: FormatNumber(1234567) => "1,234,567" in English, "1.234.567" in German
 BASE_I18N_EXPORT string16 FormatNumber(int64_t number);
 
 // Return a number formatted with separators in the user's locale.
@@ -22,6 +21,10 @@ BASE_I18N_EXPORT string16 FormatNumber(int64_t number);
 //         => "1,234,567.8" in English, "1.234.567,8" in German
 BASE_I18N_EXPORT string16 FormatDouble(double number, int fractional_digits);
 
+// Return a percentage formatted with space and symbol in the user's locale.
+// Ex: FormatPercent(12) => "12%" in English, "12 %" in Romanian
+BASE_I18N_EXPORT string16 FormatPercent(int number);
+
 namespace testing {
 
 // Causes cached formatters to be discarded and recreated. Only useful for