Remove unused Interests code.

chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsPage.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsPage.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsPage.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsPage.java
deleted file mode 100644
index 691b8343d28cbe96d81fd7af7126d43fbadf6865..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsPage.java
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright 2015 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.ntp.interests;
-
-import android.content.Context;
-import android.view.View;
-
-import org.chromium.base.ApiCompatibilityUtils;
-import org.chromium.base.metrics.RecordHistogram;
-import org.chromium.base.metrics.RecordUserAction;
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.NativePage;
-import org.chromium.chrome.browser.UrlConstants;
-import org.chromium.chrome.browser.ntp.NewTabPageUma;
-import org.chromium.chrome.browser.ntp.NtpColorUtils;
-import org.chromium.chrome.browser.ntp.interests.InterestsService.GetInterestsCallback;
-import org.chromium.chrome.browser.ntp.interests.InterestsService.Interest;
-import org.chromium.chrome.browser.profiles.Profile;
-import org.chromium.chrome.browser.tab.Tab;
-import org.chromium.ui.widget.Toast;
-
-import java.util.Arrays;
-import java.util.List;
-
-/**
- * Displays a list of topics that we think the user is interested in. When an interest is clicked
- * the user is redirected to a search for that subject.
- */
-public class InterestsPage implements NativePage {
-
-    private static final String TAG = "InterestsPage";
-
-    private final InterestsView mPageView;
-    private final String mTitle;
-    private final int mBackgroundColor;
-    private final int mThemeColor;
-
-    private boolean mClicked;
-
-    /**
-     * Creates an InterestsPage.
-     *
-     * @param context The view context for showing the page.
-     * @param tab The tab from which interests page is loaded.
-     * @param profile The profile from which to load interests.
-     */
-    public InterestsPage(final Context context, Tab tab, Profile profile) {
-        mTitle = context.getResources().getString(R.string.ntp_interests);
-        mBackgroundColor = NtpColorUtils.getBackgroundColorResource(context.getResources(), false);
-        mThemeColor = ApiCompatibilityUtils.getColor(
-                context.getResources(), R.color.default_primary_color);
-        mPageView = (InterestsView) View.inflate(context, R.layout.interests_page, null);
-
-        new InterestsService(profile).getInterests(
-                new GetInterestsCallback() {
-                    @Override
-                    public void onInterestsAvailable(Interest[] interests) {
-                        boolean gotInterests = interests != null;
-                        RecordHistogram.recordBooleanHistogram(
-                                "NewTabPage.Interests.InterestsFetchSuccess", gotInterests);
-                        if (!gotInterests) {
-                            showToastOnFailure();
-                            return;
-                        }
-                        List<Interest> interestList = Arrays.asList(interests);
-                        // We use sparse histograms here like in NewTabPage.Snippets.NumArticles,
-                        // NewTabPage.NumberOfTiles etc as this will measure a small number (< 30)
-                        // which is expected to be constant for a user and prefer exact counts
-                        // without defining artificial bucket boundaries.
-                        RecordHistogram.recordSparseSlowlyHistogram(
-                                "NewTabPage.Interests.NumInterests", interestList.size());
-                        if (interestList.size() == 0) {
-                            showToastOnFailure();
-                            return;
-                        }
-                        mPageView.setInterests(interestList);
-                    }
-
-                    private void showToastOnFailure() {
-                        Toast.makeText(context, R.string.ntp_no_interests_toast, Toast.LENGTH_SHORT)
-                                .show();
-                    }
-                });
-    }
-
-    public void setListener(final InterestsClickListener listener) {
-        mPageView.setListener(new InterestsClickListener() {
-            public void onInterestClicked(String interest) {
-                mClicked = true;
-                NewTabPageUma.recordAction(NewTabPageUma.ACTION_CLICKED_INTEREST);
-                RecordUserAction.record("MobileNTP.Interests.Click");
-                listener.onInterestClicked(interest);
-            }
-        });
-    }
-
-    /**
-     * Interface to be notified when the user clicks on an interest.
-     **/
-    public interface InterestsClickListener {
-        /**
-         * Called when an interest is selected.
-         *
-         * @param name The name of the selected interest.
-         */
-        void onInterestClicked(String name);
-    }
-
-    @Override
-    public String getTitle() {
-        return mTitle;
-    }
-
-    @Override
-    public int getBackgroundColor() {
-        return mBackgroundColor;
-    }
-
-    @Override
-    public int getThemeColor() {
-        return mThemeColor;
-    }
-    @Override
-    public View getView() {
-        return mPageView;
-    }
-
-
-    @Override
-    public void destroy() {
-        if (mClicked) return;
-        RecordUserAction.record("MobileNTP.Interests.Dismissed");
-    }
-
-    @Override
-    public String getHost() {
-        return UrlConstants.INTERESTS_HOST;
-    }
-
-    @Override
-    public String getUrl() {
-        return UrlConstants.INTERESTS_URL;
-    }
-
-    @Override
-    public void updateForUrl(String url) {
-    }
-}