Java versions of BlimpContents[,Observer] and BlimpNavigationController

blimp/client/core/public/android/java/src/org/chromium/blimp/core_public/BlimpContents.java

Index: blimp/client/core/public/android/java/src/org/chromium/blimp/core_public/BlimpContents.java
diff --git a/blimp/client/core/public/android/java/src/org/chromium/blimp/core_public/BlimpContents.java b/blimp/client/core/public/android/java/src/org/chromium/blimp/core_public/BlimpContents.java
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index 0000000000000000000000000000000000000000..1760bfc0991b01b05aeedf4a8488ab0b0fe1b109
--- /dev/null
+++ b/blimp/client/core/public/android/java/src/org/chromium/blimp/core_public/BlimpContents.java
@@ -0,0 +1,37 @@
+// 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.blimp.core_public;
+
+/**
+ * BlimpContents is the Java representation of a native BlimpContents object.
+ *
+ * BlimpContents is the core class in //blimp/client/core. It renders web pages from an engine in a
+ * rectangular area. It enables callers to control the blimp engine through the use of the
+ * navigation controller.
+ */
+public interface BlimpContents {
+    /**
+     * Retrives the {@link BlimpNavigationController} that controls all navigation related
+     * to this BlimpContents.
+     */
+    BlimpNavigationController getNavigationController();
+
+    /**
+     * Adds an observer to this BlimpContents.
+     */
+    void addObserver(BlimpContentsObserver observer);
+
+    /**
+     * Removes an observer from this BlimpContents.
+     */
+    void removeObserver(BlimpContentsObserver observer);
+
+    /**
+     * For BlimpContents that are owned by Java, i.e. created by the
+     * {@link org.chromium.blimp.core.BlimpContentsFactory}, this must be called before this
+     * BlimpContents is garbage collected.
+     */
+    void destroy();
+}