Add a content description for the widget reconfigure button.

Bug: 186761890
Test: manual
Change-Id: Ia36972b606a524827ade8bd1c191f8b972bbb382
diff --git a/res/layout/app_widget_resize_frame.xml b/res/layout/app_widget_resize_frame.xml
index 53db5ed..249e42c 100644
--- a/res/layout/app_widget_resize_frame.xml
+++ b/res/layout/app_widget_resize_frame.xml
@@ -83,7 +83,8 @@
             android:layout_marginEnd="@dimen/widget_reconfigure_button_margin"
             android:src="@drawable/widget_reconfigure_button_frame"
             android:background="?android:attr/selectableItemBackground"
-            android:visibility="gone" />
+            android:visibility="gone"
+            android:contentDescription="@string/widget_reconfigure_button_content_description" />
 
     </FrameLayout>
 </com.android.launcher3.AppWidgetResizeFrame>
\ No newline at end of file
diff --git a/res/values/strings.xml b/res/values/strings.xml
index c851cf8..ab1b32d 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -108,6 +108,10 @@
     <!-- Text on the button that closes the education dialog about widgets. [CHAR_LIMIT=50] -->
     <string name="widget_education_close_button">Got it</string>
 
+    <!-- Spoken text for screen readers. This text is for an icon that lets the user change a
+         widget's settings. [CHAR_LIMIT=50] -->
+    <string name="widget_reconfigure_button_content_description">Change widget settings</string>
+
     <!-- All Apps -->
     <!-- Search bar text in the apps view. [CHAR_LIMIT=50] -->
     <string name="all_apps_search_bar_hint">Search apps</string>