Add the SHA-1 deprecation string for Android page info security summary phrase.

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 90a62a9886d0ff6587e59bc1a7220c8fa4dffb0c..b62c080e3e446ba5809b852c8f5f1c54347e8224 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -1268,6 +1268,9 @@ You are signing in with a managed account and giving its administrator control o
       <message name="IDS_PAGE_INFO_CONNECTION_MIXED" desc="Message to display in the page info bubble when the main connection is private, but there is content on the page that is not private.">
         Your connection to this site is private, but someone on the network might be able to change the look of the page.
       </message>
+      <message name="IDS_PAGE_INFO_CONNECTION_SHA1" desc="Message to display in the page info bubble when the page is not considered private (because the connection used SHA-1 for certificate signatures, which are not considered secure anymore).">
+        This site uses a weak security configuration (SHA-1 signatures), so your connection may not be private.
+      </message>
       <message name="IDS_PAGE_INFO_CONNECTION_BROKEN_LEADING_TEXT" desc="Message to display highlighted red in the page info bubble when the connection is insecure because the HTTPS certificate is invalid.">
         Your connection to this site is not private.
       </message>