Remove unused Interests code.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsItemView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsItemView.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsItemView.java
deleted file mode 100644
index 4484def7d18d02e7cff3a3a8565b751c800859bd..0000000000000000000000000000000000000000
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/interests/InterestsItemView.java
+++ /dev/null
@@ -1,243 +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.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Color;
-import android.graphics.Rect;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.media.ThumbnailUtils;
-import android.os.AsyncTask;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawable;
-import android.support.v4.graphics.drawable.RoundedBitmapDrawableFactory;
-import android.support.v7.widget.AppCompatTextView;
-import android.text.TextUtils;
-import android.util.LruCache;
-import android.util.TypedValue;
-import android.view.Gravity;
-import android.view.View;
-import android.view.View.OnClickListener;
-
-import org.chromium.base.Callback;
-import org.chromium.base.Log;
-import org.chromium.base.Promise;
-import org.chromium.base.metrics.RecordHistogram;
-import org.chromium.chrome.R;
-import org.chromium.chrome.browser.ntp.interests.InterestsPage.InterestsClickListener;
-import org.chromium.chrome.browser.ntp.interests.InterestsService.Interest;
-import org.chromium.chrome.browser.widget.RoundedIconGenerator;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.net.URL;
-
-/**
- * Displays the interest name along with an image of it. This item can be clicked.
- */
-class InterestsItemView extends AppCompatTextView implements OnClickListener {
-
-    private static final String TAG = "InterestsItemView";
-
-    // Color codes to provide a variety of background colours for the letter tiles.
-    // TODO(peconn): Move this, along with getTileColor into a separate class.
-    private static final int[] COLORS = {0xfff16364, 0xfff58559, 0xfff9a43e, 0xffe4c62e, 0xff67bf74,
-            0xff59a2be, 0xff2093cd, 0xffad62a7};
-
-    /**
-     * Drawing-related values that can be shared between instances of InterestsItemView.
-     */
-    static final class DrawingData {
-
-        private final int mPadding;
-        private final int mMinHeight;
-        private final int mImageSize;
-        private final int mTextSize;
-        private final int mImageTextSize;
-
-        private final RoundedIconGenerator mIconGenerator;
-
-        /**
-         * Initialize shared values used for drawing the image.
-         *
-         * @param context The view context in which the InterestsItemView will be drawn.
-         */
-        DrawingData(Context context) {
-            Resources res = context.getResources();
-            mPadding = res.getDimensionPixelOffset(R.dimen.ntp_list_item_padding);
-            mMinHeight = res.getDimensionPixelSize(R.dimen.ntp_interest_item_min_height);
-            mTextSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_text_size);
-            mImageSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_image_size);
-            mImageTextSize = res.getDimensionPixelSize(R.dimen.ntp_interest_item_image_text_size);
-            mIconGenerator = new RoundedIconGenerator(
-                mImageSize, mImageSize, mImageSize / 2, Color.GRAY, mImageTextSize);
-        }
-    }
-
-    private Interest mInterest;
-
-    private final Context mContext;
-    private final DrawingData mDrawingData;
-    private final LruCache<String, Promise<Drawable>> mImageCache;
-    private final InterestsClickListener mListener;
-
-    /**
-     * @param context The view context in which this item will be shown.
-     * @param interest The interest to display.
-     * @param listener Callback object for when a view is pressed.
-     * @param imageCache A cache to store downloaded images.
-     * @param drawingData Information about the view size.
-     */
-    InterestsItemView(Context context, Interest interest, InterestsClickListener listener,
-            LruCache<String, Promise<Drawable>> imageCache, DrawingData drawingData) {
-        super(context);
-
-        mContext = context;
-        mListener = listener;
-        mImageCache = imageCache;
-        mDrawingData = drawingData;
-
-        setTextSize(TypedValue.COMPLEX_UNIT_PX, mDrawingData.mTextSize);
-        setMinimumHeight(mDrawingData.mMinHeight);
-        setGravity(Gravity.CENTER);
-        setTextAlignment(View.TEXT_ALIGNMENT_CENTER);
-
-        setOnClickListener(this);
-
-        reset(interest);
-    }
-
-    /**
-     * Resets the view contents so that it can be reused in the grid view.
-     *
-     * @param interest The interest to display.
-     */
-    public void reset(Interest interest) {
-        // Reset Drawable state so ripples don't continue when the View is reused.
-        jumpDrawablesToCurrentState();
-
-        // Exit early if this View is already displaying the Interest given.
-        if (mInterest != null
-                && TextUtils.equals(interest.getName(), mInterest.getName())
-                && TextUtils.equals(interest.getImageUrl(), mInterest.getImageUrl())) {
-            mInterest = interest;
-            return;
-        }
-
-        mInterest = interest;
-
-        setText(mInterest.getName());
-
-        Promise<Drawable> promise = mImageCache.get(mInterest.getImageUrl());
-        if (promise == null) {
-            promise = new Promise<Drawable>();
-            mImageCache.put(mInterest.getImageUrl(),
-                    ImageDownloadTask.start(mInterest.getImageUrl(), getResources()));
-        }
-
-        // If not fulfilled, display a letter tile while waiting for the image to download.
-        if (!promise.isFulfilled()) {
-            mDrawingData.mIconGenerator.setBackgroundColor(getTileColor(mInterest.getName()));
-            setImage(new BitmapDrawable(mContext.getResources(),
-                    mDrawingData.mIconGenerator.generateIconForText(mInterest.getName())));
-        }
-
-        // Once fulfilled, display the image (unless this view has been repurposed for a different
-        // Interest).
-        final String urlWhenDownloadRequested = mInterest.getImageUrl();
-        promise.then(new Callback<Drawable>() {
-            @Override
-            public void onResult(Drawable drawable) {
-                if (drawable == null) return;
-                if (TextUtils.equals(mInterest.getImageUrl(), urlWhenDownloadRequested)) return;
-
-                setImage(drawable);
-            }
-        });
-    }
-
-    /**
-     * @return The image URL for the interest.
-     */
-    public String getImageUrl() {
-        return mInterest.getImageUrl();
-    }
-
-    /**
-     * @return The name of the interest.
-     */
-    public String getName() {
-        return mInterest.getName();
-    }
-
-    private void setImage(Drawable image) {
-        image.setBounds(new Rect(0, 0, mDrawingData.mImageSize, mDrawingData.mImageSize));
-        setCompoundDrawables(null, image, null, null);
-    }
-
-    private int getTileColor(String str) {
-        // Rough copy of LetterTileDrawable.pickColor.
-        // TODO(peconn): Move this to a more general class.
-        return COLORS[Math.abs(str.hashCode() % COLORS.length)];
-    }
-
-    @Override
-    public void onClick(View v) {
-        mListener.onInterestClicked(getName());
-    }
-
-    /*
-     * An AsyncTask that downloads an image and formats it.
-     */
-    private static class ImageDownloadTask extends AsyncTask<Void, Void, Drawable> {
-
-        public static Promise<Drawable> start(String url, Resources resources) {
-            Promise<Drawable> promise = new Promise<Drawable>();
-            new ImageDownloadTask(url, promise, resources).executeOnExecutor(THREAD_POOL_EXECUTOR);
-            return promise;
-        }
-
-        private final String mUrl;
-        private final Resources mResources;
-        private Promise<Drawable> mPromise;
-
-        private ImageDownloadTask(String url, Promise<Drawable> promise, Resources resources) {
-            mUrl = url;
-            mPromise = promise;
-            mResources = resources;
-        }
-
-        @Override
-        protected Drawable doInBackground(Void... voids) {
-            // This is run on a background thread.
-            try {
-                // TODO(peconn): Replace this with something from the C++ Chrome stack.
-                URL imageUrl = new URL(mUrl);
-                InputStream in = imageUrl.openStream();
-
-                Bitmap raw = BitmapFactory.decodeStream(in);
-                int dimension = Math.min(raw.getHeight(), raw.getWidth());
-                RoundedBitmapDrawable img = RoundedBitmapDrawableFactory.create(mResources,
-                        ThumbnailUtils.extractThumbnail(raw, dimension, dimension));
-                img.setCircular(true);
-
-                return img;
-            } catch (IOException e) {
-                Log.e(TAG, "Error downloading image: " + e.toString());
-            }
-            return null;
-        }
-
-        @Override
-        protected void onPostExecute(Drawable image) {
-            RecordHistogram.recordBooleanHistogram(
-                    "NewTabPage.Interests.ImageDownloadSuccess", image != null);
-            mPromise.fulfill(image);
-        }
-    }
-}