Fix strings for support tab.

Bug: 29105266

- Fix typos in string and comments
- Use 2 different strings for off-hour and off-line cases.

Change-Id: I63859605ff7185d5f8cc66fd31b56f1d09ed11aa
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 5073893..369210f 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -7516,7 +7516,10 @@
     <string name="support_escalation_24_7_summary">Our support team is available all day, every day</string>
 
     <!-- Summary text when customer support is closed. [CHAR LIMIT=NONE]-->
-    <string name="support_escalation_closed_summary">Phone support hours (local time)&lt;br&gt;&lt;b&gt;<xliff:g id="operation_hours">%s</xliff:g>&lt;/b&gt;</string>
+    <string name="support_escalation_closed_summary">Search help or come back during support hours (local time):&lt;br&gt;&lt;b&gt;<xliff:g id="operation_hours">%s</xliff:g>&lt;/b&gt;</string>
+
+    <!-- Summary text to call customer support when there is no internet. [CHAR LIMIT=NONE]-->
+    <string name="support_escalation_no_internet_summary">Phone support hours (local time)&lt;br&gt;&lt;b&gt;<xliff:g id="operation_hours">%s</xliff:g>&lt;/b&gt;</string>
 
     <!-- Summary text when customer support is unavailable in the region. [CHAR LIMIT=NONE]-->
     <string name="support_escalation_unavailable_summary">Search help or explore tips &amp; tricks</string>
@@ -7538,7 +7541,7 @@
     </string>
 
     <!-- Title text for a list of international support phone numbers. [CHAR LIMIT=60]-->
-    <string name="support_international_phone_title">Traveling aboard?</string>
+    <string name="support_international_phone_title">Traveling abroad?</string>
 
     <!-- Description text warning international phone charge may apply when dialing support numbers. [CHAR LIMIT=NONE]-->
     <string name="support_international_phone_summary">International charges may apply</string>
diff --git a/src/com/android/settings/dashboard/SupportItemAdapter.java b/src/com/android/settings/dashboard/SupportItemAdapter.java
index 9493f89..4e9153c 100644
--- a/src/com/android/settings/dashboard/SupportItemAdapter.java
+++ b/src/com/android/settings/dashboard/SupportItemAdapter.java
@@ -198,10 +198,11 @@
             builder.setTileTitle(R.string.support_escalation_title)
                     .setTileSummary(R.string.support_escalation_summary);
         } else {
-            // Support is not temporarily unavailable.
+            // Support is now temporarily unavailable.
             builder.setTileTitle(R.string.support_escalation_title)
                     .setTileSummary(
-                            mSupportFeatureProvider.getOperationHours(mActivity, PHONE, null));
+                            mSupportFeatureProvider.getOperationHours(mActivity, PHONE, null,
+                                    true /* hasInternet */));
         }
         if (hasPhoneOperation) {
             builder.setText1(R.string.support_escalation_by_phone)
@@ -222,7 +223,7 @@
             operatingHours = mActivity.getString(R.string.support_escalation_24_7_summary);
         } else {
             operatingHours = mSupportFeatureProvider.getOperationHours(mActivity,
-                    PHONE, mSelectedCountry);
+                    PHONE, mSelectedCountry, false /* hasInternet */);
         }
         mSupportData.add(new OfflineEscalationData.Builder(mActivity)
                 .setCountries(mSupportFeatureProvider.getPhoneSupportCountries())
diff --git a/src/com/android/settings/overlay/SupportFeatureProvider.java b/src/com/android/settings/overlay/SupportFeatureProvider.java
index c535622..4d8e3d6 100644
--- a/src/com/android/settings/overlay/SupportFeatureProvider.java
+++ b/src/com/android/settings/overlay/SupportFeatureProvider.java
@@ -71,7 +71,8 @@
      * Returns localized string for operation hours in specified country. If country is null, use
      * current country to figure out operation hours.
      */
-    CharSequence getOperationHours(Context context, @SupportType int type, String countryCode);
+    CharSequence getOperationHours(Context context, @SupportType int type, String countryCode,
+            boolean hasInternet);
 
     /**
      * Returns a localized string indicating estimated wait time for a support time.