[Instant Hotspot] Add tether error message strings

Adds strings for QS tether host error messages.

A follow-up CL will wrap the error messages.

Screenshot (before text wrapping): https://screenshot.googleplex.com/AhsnN2Hanut8VAW.jpg

Screenshot (bluetooth turned off, text wrapped): https://screenshot.googleplex.com/AwSvJGAwnngtzGP.jpg

Screenshot (no hotspot found, text wrapped):
https://screenshot.googleplex.com/3W9uKdiYwUizmaL.jpg

Bug: b/305792226, b/305993123
Change-Id: I61f422626d83bcb9a523611114894b37c5ab66e8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5033123
Reviewed-by: Chad Duffin <chadduffin@chromium.org>
Commit-Queue: Rudransh Dikshit <rudranshd@google.com>
Reviewed-by: Joe Antonetti <joeantonetti@google.com>
Auto-Submit: Rudransh Dikshit <rudranshd@google.com>
Cr-Commit-Position: refs/heads/main@{#1258636}

ash/ash_strings.grd

@@ -3694,6 +3694,12 @@ Some features are limited to increase battery life.
       <message name="IDS_ASH_STATUS_TRAY_NETWORK_MOBILE_DISABLING" desc="The message to display in the network list when mobile data is turning off (disabling).">
         Mobile data is turning off...
       </message>
+      <message name="IDS_ASH_STATUS_TRAY_NETWORK_NO_TETHER_DEVICES_FOUND" desc="The message to display in the tether hosts network list when no tether devices are found.">
+        No available hotspot. Make sure your device is nearby and Bluetooth is turned on.
+      </message>
+      <message name="IDS_ASH_STATUS_TRAY_NETWORK_TETHER_NO_BLUETOOTH" desc="The message to display in the tether hosts network list when Bluetooth is disabled.">
+        Turn on Bluetooth to discover available hotspots nearby
+      </message>
       <message name="IDS_ASH_STATUS_TRAY_VPN_DISCONNECTED" desc="The label used in system tray bubble to display vpn is disconnected.">
         VPN disconnected
       </message>

ash/ash_strings_grd/IDS_ASH_STATUS_TRAY_NETWORK_NO_TETHER_DEVICES_FOUND.png.sha1

@@ -0,0 +1 @@
+e49b59deb38f7b30e18f2f2dba24f9183a387ae7

ash/ash_strings_grd/IDS_ASH_STATUS_TRAY_NETWORK_TETHER_NO_BLUETOOTH.png.sha1

@@ -0,0 +1 @@
+494f49716613706338ff40c0095b532e8697e677

ash/system/network/network_list_view_controller_impl.cc

@@ -701,14 +701,14 @@ void NetworkListViewControllerImpl::UpdateTetherHostsSection() {
 
   if (!IsBluetoothEnabledOrEnabling(bluetooth_system_state_)) {
     CreateInfoLabelIfMissingAndUpdate(
-        IDS_ASH_STATUS_TRAY_BLUETOOTH_DISABLED_TOOLTIP,
+        IDS_ASH_STATUS_TRAY_NETWORK_TETHER_NO_BLUETOOTH,
         &tether_hosts_status_message_);
     return;
   }
 
   if (!has_tether_networks_) {
     CreateInfoLabelIfMissingAndUpdate(
-        IDS_ASH_STATUS_TRAY_NO_MOBILE_DEVICES_FOUND,
+        IDS_ASH_STATUS_TRAY_NETWORK_NO_TETHER_DEVICES_FOUND,
         &tether_hosts_status_message_);
     return;
   }

ash/system/network/network_list_view_controller_unittest.cc

@@ -1221,9 +1221,9 @@ TEST_P(NetworkListViewControllerTest, HasCorrectTetherStatusMessage) {
   } else {
     ASSERT_THAT(GetTetherHostsStatusMessage(), NotNull());
     ASSERT_THAT(GetTetherHostsSubHeader(), NotNull());
-    EXPECT_EQ(
+    EXPECT_EQ(l10n_util::GetStringUTF16(
-        l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_NO_MOBILE_DEVICES_FOUND),
+                  IDS_ASH_STATUS_TRAY_NETWORK_NO_TETHER_DEVICES_FOUND),
-        GetTetherHostsStatusMessage()->label()->GetText());
+              GetTetherHostsStatusMessage()->label()->GetText());
     EXPECT_TRUE(network_list(NetworkType::kTether)->GetVisible());
   }
 
@@ -1241,9 +1241,9 @@ TEST_P(NetworkListViewControllerTest, HasCorrectTetherStatusMessage) {
   } else {
     EXPECT_TRUE(network_list(NetworkType::kTether)->GetVisible());
     ASSERT_THAT(GetTetherHostsStatusMessage(), NotNull());
-    EXPECT_EQ(
+    EXPECT_EQ(l10n_util::GetStringUTF16(
-        l10n_util::GetStringUTF16(IDS_ASH_STATUS_TRAY_NO_MOBILE_DEVICES_FOUND),
+                  IDS_ASH_STATUS_TRAY_NETWORK_NO_TETHER_DEVICES_FOUND),
-        GetTetherHostsStatusMessage()->label()->GetText());
+              GetTetherHostsStatusMessage()->label()->GetText());
   }
 
   // Set Bluetooth device to disabling.
@@ -1259,7 +1259,7 @@ TEST_P(NetworkListViewControllerTest, HasCorrectTetherStatusMessage) {
     ASSERT_THAT(GetTetherHostsStatusMessage(), NotNull());
     EXPECT_TRUE(network_list(NetworkType::kTether)->GetVisible());
     EXPECT_EQ(l10n_util::GetStringUTF16(
-                  IDS_ASH_STATUS_TRAY_BLUETOOTH_DISABLED_TOOLTIP),
+                  IDS_ASH_STATUS_TRAY_NETWORK_TETHER_NO_BLUETOOTH),
               GetTetherHostsStatusMessage()->label()->GetText());
   }
 
@@ -1277,7 +1277,7 @@ TEST_P(NetworkListViewControllerTest, HasCorrectTetherStatusMessage) {
     ASSERT_THAT(GetTetherHostsStatusMessage(), NotNull());
     EXPECT_TRUE(network_list(NetworkType::kTether)->GetVisible());
     EXPECT_EQ(l10n_util::GetStringUTF16(
-                  IDS_ASH_STATUS_TRAY_BLUETOOTH_DISABLED_TOOLTIP),
+                  IDS_ASH_STATUS_TRAY_NETWORK_TETHER_NO_BLUETOOTH),
               GetTetherHostsStatusMessage()->label()->GetText());
   }