Improve the SSL error display when the clock is wrong.

chrome/app/chromium_strings.grd

Index: chrome/app/chromium_strings.grd
diff --git a/chrome/app/chromium_strings.grd b/chrome/app/chromium_strings.grd
index 4b79fe7baf5ee0a682aa52bdb28e196ccc7b8fda..5367f3fc28cd671c1f7c90b35d705bc6c558b949 100644
--- a/chrome/app/chromium_strings.grd
+++ b/chrome/app/chromium_strings.grd
@@ -1246,14 +1246,21 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
       <!-- SSL Interstitial V2 strings -->
       <if expr="is_android or is_ios">
         <message name="IDS_SSL_CLOCK_ERROR" desc="Paragraph explaining that the SSL interstitial is probably caused by an incorrect clock.">
-          Chromium can't establish a private connection to &lt;strong&gt;<ph name="DOMAIN">$1<ex>paypal.com</ex></ph>&lt;/strong&gt;. This is probably because your device's date is set incorrectly (<ph name="DATE">$2<ex>Jan 1, 1970</ex></ph>). You should refresh this page after <ph name="BEGIN_LINK">&lt;a href="#" id="clock-link"&gt;</ph>you update your device's date and time<ph name="END_LINK">&lt;/a&gt;</ph>.
+          Chromium can't establish a private connection to &lt;strong&gt;<ph name="DOMAIN">$1<ex>paypal.com</ex></ph>&lt;/strong&gt;. This is probably because your device's date is set incorrectly. (Your device has the date set to <ph name="DATE">$2<ex>Jan 1, 1970</ex></ph>.) You should refresh this page after <ph name="BEGIN_LINK">&lt;a href="#" id="clock-link"&gt;</ph>you update your device's date and time<ph name="END_LINK">&lt;/a&gt;</ph>.
+        </message>
+        <message name="IDS_SSL_CLOCK_ERROR_EXPLANATION" desc="Body text for the explanation shown for when the computer's clock is wrong.">
+        To establish a secure network connection, your device needs a correct clock. This is because the authentication certificates that web sites use are issued for particular time periods. Since your device's clock is wrong, Chromium cannot properly check certificates.

[Ryan Sleevi, 2014/08/20 05:03:06]

Wording suggestion, felt to override:

This is because the certificates websites use to identify themselves when
establishing a secure connection are only valid for a specific time period.


Justification:
1) Ideally, we'd conceptually match it to things like drivers license or IDs,
but that's too hard a concept to translate. But hopefully this language gets us
closer
2) I want to avoid "complex" terms like "authentication certificates" or
"issuance", and instead try to focus on concepts that may be more relatable
(conceptually), and in line with our other messages (which are about "identity"
of the site you're talking to)

[palmer, 2014/08/22 18:32:49]

Done.

         </message>
       </if>
       <if expr="not is_android and not is_ios">
         <message name="IDS_SSL_CLOCK_ERROR" desc="Paragraph explaining that the SSL interstitial is probably caused by an incorrect clock.">
-          Chromium can't establish a private connection to &lt;strong&gt;<ph name="DOMAIN">$1<ex>paypal.com</ex></ph>&lt;/strong&gt;. This is probably because your computer's date is set incorrectly (<ph name="DATE">$2<ex>Jan 1, 1970</ex></ph>). You should refresh this page after <ph name="BEGIN_LINK">&lt;a href="#" id="clock-link"&gt;</ph>you update your computer's date and time<ph name="END_LINK">&lt;/a&gt;</ph>.
+          Chromium can't establish a private connection to &lt;strong&gt;<ph name="DOMAIN">$1<ex>paypal.com</ex></ph>&lt;/strong&gt;. This is probably because your computer's date is set incorrectly. (Your computer has the date set to <ph name="DATE">$2<ex>Jan 1, 1970</ex></ph>.) You should refresh this page after <ph name="BEGIN_LINK">&lt;a href="#" id="clock-link"&gt;</ph>you update your computer's date and time<ph name="END_LINK">&lt;/a&gt;</ph>.
+        </message>
+        <message name="IDS_SSL_CLOCK_ERROR_EXPLANATION" desc="Body text for the explanation shown for when the computer's clock is wrong.">
+        To establish a secure network connection, your computer needs a correct clock. This is because the authentication certificates that web sites use are issued for particular time periods. Since your computer's clock is wrong, Chromium cannot properly check certificates.

[Ryan Sleevi, 2014/08/20 05:03:07]

Ditto

[palmer, 2014/08/22 18:32:49]

Done.

         </message>
       </if>
+
       <message name="IDS_SSL_NONOVERRIDABLE_MORE_INVALID_SP3" desc="Body text for the explanation shown if the user clicks on the details windows, the certificate is invalid and the user has an old version of Windows (before WINDOWS XP SP3) running.">
       Your computer is running an old version of Microsoft Windows that cannot process this website's security certificate. Because of this problem, Chromium can't tell whether the certificate came from <ph name="SITE">$1<ex>google.com</ex></ph> or from someone on your network pretending to be <ph name="SITE">$1<ex>google.com</ex></ph>. Please update your computer to a more recent version of Windows.
       </message>