[AiS] Java bridge for AnswersImageService

chrome/android/java/src/org/chromium/chrome/browser/omnibox/AnswersImage.java

Index: chrome/android/java/src/org/chromium/chrome/browser/omnibox/AnswersImage.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/omnibox/AnswersImage.java b/chrome/android/java/src/org/chromium/chrome/browser/omnibox/AnswersImage.java
new file mode 100644
index 0000000000000000000000000000000000000000..958c2563fe902258f6ede0d104d0621d2e5e83fb
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/omnibox/AnswersImage.java
@@ -0,0 +1,62 @@
+// Copyright 2014 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.omnibox;
+
+import android.graphics.Bitmap;
+
+import org.chromium.base.CalledByNative;
+import org.chromium.chrome.browser.profiles.Profile;
+
+/**
+ * Provides access to images used by Answers in Suggest.
+ */
+public class AnswersImage {
+    /**
+     * Observer for updating an image when it is available.
+     */
+    public interface AnswersImageObserver {
+        /**
+         * Called when the image is updated.
+         *
+         * @param answersImage the image
+         */
+        @CalledByNative("AnswersImageObserver")
+        public void onAnswersImageChanged(Bitmap bitmap);
+    }
+
+    /**
+     * Request image, observer is notified when image is loaded.
+     * @param profile     Profile that the request is for.
+     * @param imageUrl    URL for image data.
+     * @param observer    Observer to be notified when image is updated. The C++ side will hold a
+     *                    strong reference to this.
+     * @return            A request_id.
+     */
+    public static int requestAnswersImage(
+            Profile profile, String imageUrl, AnswersImageObserver observer) {
+        return nativeRequestAnswersImage(profile, imageUrl, observer);
+    }
+
+    /**
+     * Cancel a pending image request.
+     * @param profile    Profile the request was issued for.
+     * @param requestId  The ID of the request to be cancelled.
+     */
+    public static void cancelAnswersImageRequest(Profile profile, int requestId) {
+        nativeCancelAnswersImageRequest(profile, requestId);
+    }
+
+    /**
+     * Requests an image at |imageUrl| for the given |profile| with |observer| being notified.
+     * @returns an AnswersImageRequest
+     */
+    private static native int nativeRequestAnswersImage(
+            Profile profile, String imageUrl, AnswersImageObserver observer);
+
+    /**
+     * Cancels a pending request.
+     */
+    private static native void nativeCancelAnswersImageRequest(Profile profile, int requestId);
+}