[Smart Lock] Add a private API to show an error bubble anchored to the Smart Lock app window.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 4119b9bd06c09ca4e35cfc4ef0ee7a6d7e5ef8cb..ae9b1d06534bd707aeddea3f527b35f52d9c6935 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15214,26 +15214,26 @@ Do you accept?
       <message name="IDS_EASY_UNLOCK_LEARN_MORE_LINK_TITLE" desc="Text to use for links that point to more information about Easy Unlock in the easy unlock setup dialog.">
         Learn more
      </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_BLUETOOTH_UNAVAILBLE" desc="The error message to display when the user's Chromebook might not have Bluetooth functionality during Easy Unlock setup.">
-        Can’t find your Android phone. Make sure your <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph> has Bluetooth turned on.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_BLUETOOTH_UNAVAILBLE" desc="The error message to display when the user's Chromebook might not have Bluetooth functionality during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Can’t find your phone. Make sure your <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph> has Bluetooth enabled. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_OFFLINE" desc="The error message to display when the user's Chromebook appears to be offline during Easy Unlock setup.">
-        Can’t find your Android phone. Make sure your <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph> is online.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_OFFLINE" desc="The error message to display when the user's Chromebook appears to be offline during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Can’t find your phone. Make sure your <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph> is connected to the Internet. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_FINDING_PHONE" desc="A generic catch-all error message to display when something goes wrong after the user clicks 'Find my phone' during Easy Unlock setup.">
-        Can’t find your Android phone. Make sure that it’s with you and online.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_FINDING_PHONE" desc="A generic catch-all error message to display when something goes wrong after the user clicks 'Find my phone' during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Can’t find your phone. Make sure that it’s turned on and within arm’s reach. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_BLUETOOTH_CONNECTION_FAILED" desc="The error message to display when the Bluetooth connection between the phone and the Chromebook is disconnected during Easy Unlock setup.">
-        Couldn’t connect your Android phone and <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph>. Make sure Bluetooth is turned on for both of your devices.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_BLUETOOTH_CONNECTION_FAILED" desc="The error message to display when the Bluetooth connection between the phone and the Chromebook is disconnected during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Couldn’t establish a connection with your phone. Make sure Bluetooth is turned on for both of your devices. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_CONNECT_TO_PHONE_TIMEOUT" desc="The error message to display when the Chromebook is unable to establish connection to the phone within a reasonable amount of time.">
-        Couldn’t connect your Android phone and <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph>. Make sure you’re using a compatible Android phone that is with you and online.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_CONNECT_TO_PHONE_TIMEOUT" desc="The error message to display when the Chromebook is unable to establish connection to the phone within a reasonable amount of time. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Couldn’t establish a connection with your phone. Make sure you’re using a compatible Android phone that is turned on and within arm’s reach. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
       <message name="IDS_EASY_UNLOCK_SETUP_ERROR_SYNC_PHONE_STATE_FAILED" desc="The error message to display when the Chromebook fails to sync the phone's state.">
-        Sorry, the service is currently unavailable. Please try again later.
+        Smart Lock is currently unavailable. Please try again later.
       </message>
-      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_CONNECTING_TO_PHONE" desc="A generic catch-all error message to display when something goes wrong after the user clicks 'Use this phone' during Easy Unlock setup.">
-        Couldn’t connect your Android phone and <ph name="DEVICE_TYPE">$1<ex>Chromebook</ex></ph>. Make sure your Android phone is with you and online.
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_CONNECTING_TO_PHONE" desc="A generic catch-all error message to display when something goes wrong after the user clicks 'Use this phone' during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Couldn’t establish a connection with your phone. Make sure you’re using a compatible Android phone that is turned on and within arm’s reach. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
       <!-- Easy Unlock strings shown on the lock screen -->
       <message name="IDS_EASY_UNLOCK_SCREENLOCK_TOOLTIP_NO_BLUETOOTH" desc="Tooltip for an icon on a user's lock screen pod shown by Easy Unlock when the Chromebook doesn't have Bluetooth enabled.">