Remove unused Interests code.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsService.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsService.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsService.java
deleted file mode 100644
index f6d87f7fba481cac29e057e3b2ec051eaa131cd3..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsService.java
+++ /dev/null
@@ -1,123 +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.text.TextUtils;
-
-import org.chromium.base.VisibleForTesting;
-import org.chromium.base.annotations.CalledByNative;
-import org.chromium.chrome.browser.profiles.Profile;
-
-/**
- * Retrieve the user's interests.
- */
-public class InterestsService {
-
-    private long mNativeInterestsService;
-
-    /**
-     * A user's interest.
-     */
-    public static class Interest {
-        private final String mName;
-        private final String mImageUrl;
-        private final double mRelevance;
-
-        public Interest(String name, String imageUrl, double relevance) {
-            mName = name;
-            mImageUrl = imageUrl;
-            mRelevance = relevance;
-        }
-
-        @Override
-        public String toString() {
-            return "Interest [mName=" + mName + ", mImageUrl=" + mImageUrl + ", mRelevance="
-                    + mRelevance + "]";
-        }
-
-        @Override
-        public int hashCode() {
-            final int prime = 31;
-            int result = 1;
-            result = prime * result + ((mImageUrl == null) ? 0 : mImageUrl.hashCode());
-            result = prime * result + ((mName == null) ? 0 : mName.hashCode());
-            long temp = Double.doubleToLongBits(mRelevance);
-            return prime * result + (int) (temp ^ (temp >>> 32));
-        }
-
-        @Override
-        public boolean equals(Object obj) {
-            if (this == obj) return true;
-            if (!(obj instanceof Interest)) return false;
-            return TextUtils.equals(toString(), obj.toString());
-        }
-
-        public String getName() {
-            return mName;
-        }
-
-        public String getImageUrl() {
-            return mImageUrl;
-        }
-
-        public double getRelevance() {
-            return mRelevance;
-        }
-    }
-    /**
-     * Interface for receiving the interests of a user.
-     */
-    public interface GetInterestsCallback {
-        /**
-         * Callback method for fetching the interests of a user.
-         *
-         * @param interests The array of interests. Null if error.
-         */
-        @CalledByNative("GetInterestsCallback")
-        public void onInterestsAvailable(Interest[] interests);
-    }
-
-    /**
-     * InterestsService constructor requires a valid user profile object.
-     *
-     * @param profile The profile for which to fetch the interests
-     */
-    @VisibleForTesting
-    public InterestsService(Profile profile) {
-        mNativeInterestsService = nativeInit(profile);
-    }
-
-    /**
-     * Cleans up the C++ side of this class. This instance must not be used after calling destroy().
-     */
-    public void destroy() {
-        assert mNativeInterestsService != 0;
-        nativeDestroy(mNativeInterestsService);
-        mNativeInterestsService = 0;
-    }
-
-    @VisibleForTesting
-    public void getInterests(final GetInterestsCallback callback) {
-        nativeGetInterests(mNativeInterestsService, callback);
-    }
-
-    /*
-     * Helper methods for the native part.
-     */
-    @CalledByNative
-    private static Interest createInterest(String name, String imageUrl, double relevance) {
-        return new Interest(name, imageUrl, relevance);
-    }
-
-    @CalledByNative
-    private static Interest[] createInterestsArray(int size) {
-        return new Interest[size];
-    }
-
-    private native long nativeInit(Profile profile);
-    private native void nativeDestroy(long nativeInterestsService);
-    private native void nativeGetInterests(
-            long nativeInterestsService, GetInterestsCallback callback);
-}