[Feed] Hook up SnackbarApi to Feed NTP

Bug: 860048
Change-Id: Ib8a0daa87d8015f6c13db52484cee59dda22d0cd
Reviewed-on: https://chromium-review.googlesource.com/1145822Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Becky Zhou <huayinz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577263}

chrome/android/feed/core/java/src/org/chromium/chrome/browser/feed/FeedNewTabPage.java

@@ -33,6 +33,8 @@ import org.chromium.chrome.browser.ntp.SnapScrollHelper;
 import org.chromium.chrome.browser.ntp.snippets.SectionHeaderView;
 import org.chromium.chrome.browser.profiles.Profile;
 import org.chromium.chrome.browser.search_engines.TemplateUrlService;
+import org.chromium.chrome.browser.snackbar.Snackbar;
+import org.chromium.chrome.browser.snackbar.SnackbarManager;
 import org.chromium.chrome.browser.suggestions.SuggestionsNavigationDelegateImpl;
 import org.chromium.chrome.browser.tab.Tab;
 import org.chromium.chrome.browser.tabmodel.TabModelSelector;
@@ -53,10 +55,13 @@ public class FeedNewTabPage extends NewTabPage implements TouchEnabledDelegate {
     private SectionHeaderView mSectionHeaderView;
     private FeedImageLoader mImageLoader;
 
-    private static class DummySnackbarApi implements SnackbarApi {
-        // TODO: implement snackbar functionality.
+    private class BasicSnackbarApi implements SnackbarApi {
         @Override
-        public void show(String message) {}
+        public void show(String message) {
+            mNewTabPageManager.getSnackbarManager().showSnackbar(
+                    Snackbar.make(message, new SnackbarManager.SnackbarController() {},
+                            Snackbar.TYPE_ACTION, Snackbar.UMA_FEED_NTP_STREAM));
+        }
     }
 
     private static class BasicStreamConfiguration implements StreamConfiguration {
@@ -143,7 +148,7 @@ public class FeedNewTabPage extends NewTabPage implements TouchEnabledDelegate {
                                 new FeedActionHandler(navigationDelegate),
                                 new BasicStreamConfiguration(activity.getResources()),
                                 new BasicCardConfiguration(activity.getResources()),
-                                new DummySnackbarApi())
+                                new BasicSnackbarApi())
                         .build();
 
         mStream = streamScope.getStream();

chrome/android/java/src/org/chromium/chrome/browser/snackbar/Snackbar.java

@@ -63,6 +63,7 @@ public class Snackbar {
     public static final int UMA_SNIPPET_FETCH_NO_NEW_SUGGESTIONS = 23;
     public static final int UMA_MISSING_FILES_NO_SD_CARD = 24;
     public static final int UMA_OFFLINE_INDICATOR = 25;
+    public static final int UMA_FEED_NTP_STREAM = 26;
 
     private SnackbarController mController;
     private CharSequence mText;

tools/metrics/histograms/enums.xml

@@ -43667,6 +43667,7 @@ Called by update_net_trust_anchors.py.-->
   <int value="23" label="SNIPPET_FETCH_NO_NEW_SUGGESTIONS"/>
   <int value="24" label="MISSING_FILES_NO_SD_CARD"/>
   <int value="25" label="OFFLINE_INDICATOR"/>
+  <int value="26" label="FEED_NTP_STREAM"/>
 </enum>
 
 <enum name="SnippetOpenMethod">