Split //blimp/client/core to relevant parts.

blimp/client/core/blimp_contents_impl.h

-// 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.
-
-#ifndef BLIMP_CLIENT_CORE_BLIMP_CONTENTS_IMPL_H_
-#define BLIMP_CLIENT_CORE_BLIMP_CONTENTS_IMPL_H_
-
-#include "base/macros.h"
-#include "base/observer_list.h"
-#include "blimp/client/core/blimp_navigation_controller_delegate.h"
-#include "blimp/client/core/blimp_navigation_controller_impl.h"
-#include "blimp/client/public/blimp_contents.h"
-#include "url/gurl.h"
-
-#if defined(OS_ANDROID)
-#include "base/android/scoped_java_ref.h"
-#endif  // defined(OS_ANDROID)
-
-namespace blimp {
-namespace client {
-
-#if defined(OS_ANDROID)
-class BlimpContentsImplAndroid;
-#endif  // defined(OS_ANDROID)
-
-class BlimpContentsObserver;
-class BlimpNavigationController;
-
-// BlimpContentsImpl is the implementation of the core class in
-// //blimp/client/core, the BlimpContents.
-class BlimpContentsImpl : public BlimpContents,
-                          public BlimpNavigationControllerDelegate {
- public:
-  BlimpContentsImpl();
-  ~BlimpContentsImpl() override;
-
-#if defined(OS_ANDROID)
-  base::android::ScopedJavaLocalRef<jobject> GetJavaBlimpContentsImpl();
-  BlimpContentsImplAndroid* GetBlimpContentsImplAndroid();
-#endif  // defined(OS_ANDROID)
-
-  // BlimpContents implementation.
-  BlimpNavigationControllerImpl& GetNavigationController() override;
-  void AddObserver(BlimpContentsObserver* observer) override;
-  void RemoveObserver(BlimpContentsObserver* observer) override;
-
-  // BlimpNavigationControllerDelegate implementation.
-  void NotifyURLLoaded(const GURL& url) override;
-
- private:
-  // Handles the back/forward list and loading URLs.
-  BlimpNavigationControllerImpl navigation_controller_;
-
-  // A list of all the observers of this BlimpContentsImpl.
-  base::ObserverList<BlimpContentsObserver> observers_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlimpContentsImpl);
-};
-
-}  // namespace client
-}  // namespace blimp
-
-#endif  // BLIMP_CLIENT_CORE_BLIMP_CONTENTS_IMPL_H_