Adding <keygen> Content Setting (Android UI)

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 8e594094699f5483f96b2169a1c4f9ab5a796ec7..d21cee6298c748f641477b465f26fa12094e6b01 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -493,6 +493,9 @@ Usage statistics include information such as preferences, button clicks, and mem
       <message name="IDS_JAVASCRIPT_PERMISSION_TITLE" desc="Title of the permission to run javascript [CHAR-LIMIT=32]">
         JavaScript
       </message>
+      <message name="IDS_KEYGEN_PERMISSION_TITLE" desc="Title of the permission to allow a form to perform client-side key generation [CHAR-LIMIT=32]">
+        Key Generation

[newt (away), 2015/12/15 00:10:01]

s/Generation/generation/

Chrome on Android uses "Sentence case" for its title, i.e. only the first letter
of the first word is capitalized.

[svaldez, 2015/12/15 21:45:57]

Done.

+      </message>
       <message name="IDS_POPUP_PERMISSION_TITLE" desc="Title of the permission to display pop-up windows [CHAR-LIMIT=32]">
         Pop-ups
       </message>