Reword critical notification message.

TBR=grt@chromium.org

Bug: 763227
Change-Id: Ia30301f2d7bc10b69177a9c477fca435463cd39b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1785079
Reviewed-by: Allen Bauer <kylixrd@chromium.org>
Commit-Queue: Allen Bauer <kylixrd@chromium.org>
Auto-Submit: Allen Bauer <kylixrd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#693328}

chrome/app/chromium_strings.grd

@@ -321,7 +321,7 @@ Chromium is unable to recover your settings.
         Chromium can help you remember your passwords so you don't have to.
       </message>
       <message name="IDS_PASSWORD_MANAGER_ONBOARDING_DETAILS_B" desc="The explanation text that is shown below the title in the password manager onboarding dialog.">
-        Save your passwords to Chromium to access them on all your devices. 
+        Save your passwords to Chromium to access them on all your devices.
       </message>
       <message name="IDS_PASSWORD_MANAGER_ONBOARDING_DETAILS_C" desc="The explanation text that is shown below the title in the password manager onboarding dialog.">
         Chromium can help you remember your passwords so you don't have to.
@@ -1055,7 +1055,7 @@ Signing in anyway will merge Chromium information like bookmarks, history, and o
          other {Chromium will restart in # seconds}}
       </message>
       <message name="IDS_CRITICAL_NOTIFICATION_TITLE_ALTERNATE" desc="The title for a bubble that appears when there is a critical update and Chromium must restart to install it. The title was previously countng down to an automatic restart and now it has finished. Will only be seen if a web page stops the shutdown process.">
-        You should restart Chromium now
+        Please restart Chromium now
       </message>
       <message name="IDS_CRITICAL_NOTIFICATION_TEXT" desc="Explanation text for the bubble that appears when there is a critical update and Chromium must restart to install it.">
         A special security update for Chromium was just applied. Restart now and we'll restore your tabs.

chrome/app/google_chrome_strings.grd

@@ -1074,7 +1074,7 @@ Signing in anyway will merge Chrome information like bookmarks, history, and oth
          other {Google Chrome will restart in # seconds}}
       </message>
       <message name="IDS_CRITICAL_NOTIFICATION_TITLE_ALTERNATE" desc="The title for a bubble that appears when there is a critical update and Chrome must restart to install it. The title was previously countng down to an automatic restart and now it has finished. Will only be seen if a web page stops the shutdown process.">
-        You should restart Google Chrome now
+        Please restart Chrome now
       </message>
       <message name="IDS_CRITICAL_NOTIFICATION_TEXT" desc="Explanation text for the bubble that appears when there is a critical update and Chrome must restart to install it.">
         A special security update for Google Chrome was just applied. Restart now and we'll restore your tabs.