Add WebContents accessor in ContentViewCore interface.

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_
 
 #include <jni.h>
 
 class GURL;
 
 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);
 
   // --------------------------------------------------------------------------
   // Methods called from Java via JNI
   // --------------------------------------------------------------------------
 
   virtual int GetNativeImeAdapter(JNIEnv* env, jobject obj) = 0;
   virtual void SelectBetweenCoordinates(JNIEnv* env, jobject obj,
                                         jint x1, jint y1, jint x2, jint y2) = 0;
 
   // --------------------------------------------------------------------------
   // Methods called from native code
   // --------------------------------------------------------------------------
-
+  virtual content::WebContents* web_contents() const = 0;
   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaObject() = 0;
 
  protected:
   virtual ~ContentViewCore() {};
 };
 
 };  // namespace content
 
-#endif  // CONTENT_PUBLIC_BROWSER_CONTENT_VIEW_CORE_H_
+#endif  // CONTENT_PUBLIC_BROWSER_ANDROID_CONTENT_VIEW_CORE_H_