[Feed] Fix start suface dummy files for feedless build.

Bug: 990399
Change-Id: I5f7727acf55fca3fea3572b2d8a237f43eecb845
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1733015Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: Sky Malice <skym@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683783}

chrome/android/features/start_surface/internal/dummy/java/src/org/chromium/chrome/features/start_surface/ExploreSurfaceCoordinator.java

@@ -7,10 +7,29 @@ package org.chromium.chrome.features.start_surface;
 import android.view.ViewGroup;
 
 import org.chromium.chrome.browser.ChromeActivity;
+import org.chromium.chrome.browser.feed.FeedSurfaceCoordinator;
 import org.chromium.ui.modelutil.PropertyModel;
 
 /** The dummy coordinator when feed is not enabled ('src/components/feed/features.gni'). */
 class ExploreSurfaceCoordinator {
-    ExploreSurfaceCoordinator(ChromeActivity activity, ViewGroup parentView,
-            int bottomControlsHeight, PropertyModel containerPropertyModel) {}
+    ExploreSurfaceCoordinator(
+            ChromeActivity activity, ViewGroup parentView, PropertyModel containerPropertyModel) {}
+
+    /**
+     * Gets the {@link FeedSurfaceCreator}.
+     * @return the {@link FeedSurfaceCreator}.
+     */
+    FeedSurfaceCreator getFeedSurfaceCreator() {
+        return null;
+    }
+
+    /** Interface to create {@link FeedSurfaceCoordinator} */
+    interface FeedSurfaceCreator {
+        /**
+         * Creates the {@link FeedSurfaceCoordinator} for the specified mode.
+         * @param isIncognito Whether it is in incognito mode.
+         * @return The {@link FeedSurfaceCoordinator}.
+         */
+        FeedSurfaceCoordinator createFeedSurfaceCoordinator(boolean isIncognito);
+    }
 }
\ No newline at end of file

chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/FeedSurfaceCoordinator.java

+// Copyright 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.chrome.browser.feed;
+
+/**
+ * Provides a surface that displays an interest feed rendered list of content suggestions.
+ */
+public class FeedSurfaceCoordinator {
+    public void destroy() {}
+}

chrome/android/feed/feed_java_sources.gni

@@ -74,6 +74,7 @@ if (enable_feed_in_chrome) {
     "//chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/FeedAppLifecycle.java",
     "//chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/FeedNewTabPage.java",
     "//chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/FeedProcessScopeFactory.java",
+    "//chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/FeedSurfaceCoordinator.java",
     "//chrome/android/feed/dummy/java/src/org/chromium/chrome/browser/feed/TestNetworkClient.java",
   ]
   feed_srcjar_deps = []