Upstream support for basic Http authentication.

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index 84fdff2a87b65bc21fede1887392b8651f63b342..658c023118c1998e635d6ad90921f007233ac7f8 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -306,6 +306,14 @@ You are signing in with a managed account and giving its administrator control o
         Save video
      </message>
 
+     <!-- Http authentication -->
+      <message name="IDS_ACCESSIBILITY_HTTP_AUTH_USERNAME_INPUT" desc="Content description for the http authentication pop-up username input field.">
+        Username
+      </message>
+      <message name="IDS_ACCESSIBILITY_HTTP_AUTH_PASSWORD_INPUT" desc="Content description for the http authentication pop-up password input field.">
+        Password
+      </message>
+
       <!-- Smartcard certificate support -->
       <message name="IDS_SMARTCARD_DIALOG_TITLE" desc="Title of a dialog asking whether to use Android default keystore or a smartcard for certificate authentication.">
         Choose certificate for authentication