Increase char limit for private browsing warning.

BUG: 16955473
diff --git a/chromium/res/values/strings.xml b/chromium/res/values/strings.xml
index bb42490..ef71152 100644
--- a/chromium/res/values/strings.xml
+++ b/chromium/res/values/strings.xml
@@ -7,6 +7,6 @@
 
 <resources xmlns:android="http://schemas.android.com/apk/res/android" xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
     <!-- Contextual action bar item for sharing a block of text via email, or
-         other method. [CHAR-LIMIT=24] -->
+         other method. [CHAR-LIMIT=128] -->
     <string name="webviewchromium_private_browsing_warning">This functionality is not supported in this version of Android.</string>
 </resources>