[Android History] Add Android history manager UI and bridge

chrome/android/java/src/org/chromium/chrome/browser/history/BrowsingHistoryBridge.java

+// Copyright 2016 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.history;
+
+import org.chromium.base.Callback;
+import org.chromium.base.annotations.CalledByNative;
+import org.chromium.chrome.browser.profiles.Profile;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/** The JNI bridge for Android to fetch and manipulate browsing history. **/

[gone, 2016/12/02 19:34:37]

Single asterisk to close

[Theresa, 2016/12/02 20:49:32]

Done.

+public class BrowsingHistoryBridge {
+
+    private long mNativeHistoryBridge;
+    private Callback<List<HistoryItem>> mCallback;
+
+    public BrowsingHistoryBridge() {
+        mNativeHistoryBridge = nativeInit(Profile.getLastUsedProfile());
+    }
+
+    public void destroy() {
+        if (mNativeHistoryBridge != 0) {
+            nativeDestroy(mNativeHistoryBridge);
+            mNativeHistoryBridge = 0;
+        }
+    }
+
+    /**
+     * Query browsing history. Only one query may be in-flight at any time. See
+     * BrowsingHistoryService::QueryHistory.
+     * @param callback The callback that will receive query results.
+     * @param query The query search text. May be empty.
+     * @param endQueryTime The end of the time range to search. A value of 0 indicates that there
+     *                     is no limit on the end time. See the native QueryOptions.
+     */
+    public void queryHistory(Callback<List<HistoryItem>> callback, String query,
+            long endQueryTime) {
+        mCallback = callback;
+        List<HistoryItem> historyItems = new ArrayList<>();

[gone, 2016/12/02 19:34:37]

Is this needed just to make the call?  Doesn't seem it's used anywhere, yet.

[Theresa, 2016/12/02 20:49:32]

This is the list that gets passed back to the callback in onQueryHistoryComplete
below. I moved the ArrayList creation inline in the call to nativeQueryHistory.

+        nativeQueryHistory(mNativeHistoryBridge, historyItems, query, endQueryTime);
+    }
+
+    @CalledByNative
+    public static void createHistoryItemAndAddToList(
+            List<HistoryItem> items, String url, String domain, String title, long timestamp) {
+        items.add(new HistoryItem(url, domain, title, timestamp));
+    }
+
+    @CalledByNative
+    public void onQueryHistoryComplete(List<HistoryItem> items) {
+        mCallback.onResult(items);
+    }
+
+    private native long nativeInit(Profile profile);
+    private native void nativeDestroy(long nativeBrowsingHistoryBridge);
+    private native void nativeQueryHistory(long nativeBrowsingHistoryBridge,
+            List<HistoryItem> historyItems, String query, long queryEndTime);
+}