Split out ContentViewCore from ContentView for embedders.

content/public/browser/android/content_view_core.h

+// Copyright (c) 2012 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.
+
+#ifndef CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
+#define CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_
+#pragma once
+
+#include <jni.h>
+
+namespace content {
+
+class WebContents;
+
+// Native side of the ContentViewCore.java, which is the primary way of
+// communicating with the native Chromium code on Android.  This is a
+// public interface used by native code outside of the content module.
+//
+// TODO(jrg): this is a shell.  Upstream the rest.
+//
+// TODO(jrg): downstream, this class derives from
+// base::SupportsWeakPtr<ContentViewCore>.  Issues raised in
+// http://codereview.chromium.org/10536066/ make us want to rethink
+// ownership issues.
+// FOR THE MERGE (downstream), re-add derivation from
+// base::SupportsWeakPtr<ContentViewCore> to keep everything else working
+// until this issue is resolved.
+// http://b/6666045
+class ContentViewCore {
+ public:
+  virtual void Destroy(JNIEnv* env, jobject obj) = 0;
+
+  static ContentViewCore* Create(JNIEnv* env, jobject obj,
+                                 WebContents* web_contents);
+  static ContentViewCore* GetNativeContentViewCore(JNIEnv* env, jobject obj);
+
+ protected:
+  virtual ~ContentViewCore() {};
+};
+
+};  // namespace content
+
+#endif  // CONTENT_PUBLIC_BROWSER_CONTENT_VIEW_CORE_H_