Add the device language icon to the explicit language ask prompt

Bug: 895485
Change-Id: I57b740831956d1ed9985aa580b7fa24e7b085f7e
Reviewed-on: https://chromium-review.googlesource.com/c/1280852Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: anthonyvd <anthonyvd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#599727}

chrome/android/java/res/layout/language_ask_prompt_row.xml

@@ -38,4 +38,14 @@
         android:singleLine="true"
         android:layout_alignStart="@+id/ui_language_representation"
         android:layout_below="@+id/ui_language_representation" />
+
+    <ImageView
+        android:id="@+id/device_language_icon"
+        android:importantForAccessibility="no"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_mobile_friendly_grey600_24dp"
+        android:layout_alignParentEnd="true"
+        android:layout_marginEnd="@dimen/list_item_default_margin"
+        android:visibility="invisible" />
 </RelativeLayout>

chrome/android/java/src/org/chromium/chrome/browser/language/LanguageAskPrompt.java

@@ -13,8 +13,10 @@ import android.view.View;
 import android.view.ViewGroup;
 import android.widget.CheckBox;
 import android.widget.CompoundButton;
+import android.widget.ImageView;
 import android.widget.TextView;
 
+import org.chromium.base.LocaleUtils;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeFeatureList;
@@ -49,6 +51,7 @@ public class LanguageAskPrompt implements ModalDialogView.Controller {
         private TextView mLanguageNameTextView;
         private TextView mNativeNameTextView;
         private CheckBox mCheckbox;
+        private ImageView mDeviceLanguageIcon;
         private String mCode;
         private HashSet<String> mLanguagesUpdate;
 
@@ -60,6 +63,7 @@ public class LanguageAskPrompt implements ModalDialogView.Controller {
             mNativeNameTextView =
                     ((TextView) itemView.findViewById(R.id.native_language_representation));
             mCheckbox = ((CheckBox) itemView.findViewById(R.id.language_ask_checkbox));
+            mDeviceLanguageIcon = ((ImageView) itemView.findViewById(R.id.device_language_icon));
             mCheckbox.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
                 @Override
                 public void onCheckedChanged(CompoundButton button, boolean isChecked) {
@@ -93,6 +97,9 @@ public class LanguageAskPrompt implements ModalDialogView.Controller {
             mCode = code;
             mLanguagesUpdate = languagesUpdate;
             mCheckbox.setChecked(mLanguagesUpdate.contains(mCode));
+            mDeviceLanguageIcon.setVisibility(LocaleUtils.getDefaultLocaleString().equals(code)
+                            ? View.VISIBLE
+                            : View.INVISIBLE);
         }
     }