Make android directory for Android-specific bits of SkyShell

sky/shell/platform_view.h

-// Copyright 2015 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 SKY_SHELL_SKY_VIEW_H_
-#define SKY_SHELL_SKY_VIEW_H_
-
-#include "base/android/jni_weak_ref.h"
-#include "base/android/scoped_java_ref.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "base/single_thread_task_runner.h"
-#include "sky/shell/ui_delegate.h"
-
-struct ANativeWindow;
-
-namespace sky {
-namespace shell {
-
-class PlatformView {
- public:
-  struct Config {
-    base::WeakPtr<UIDelegate> ui_delegate;
-    scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner;
-  };
-
-  static bool Register(JNIEnv* env);
-
-  explicit PlatformView(const Config& config);
-  ~PlatformView();
-
-  void ConnectToViewportObserver(
-      mojo::InterfaceRequest<ViewportObserver> request);
-
-  // Called from Java
-  void Detach(JNIEnv* env, jobject obj);
-  void SurfaceCreated(JNIEnv* env, jobject obj, jobject jsurface);
-  void SurfaceDestroyed(JNIEnv* env, jobject obj);
-  void SurfaceSetSize(JNIEnv* env,
-                      jobject obj,
-                      jint width,
-                      jint height,
-                      jfloat density);
-
- private:
-  void ReleaseWindow();
-
-  Config config_;
-  ANativeWindow* window_;
-
-  DISALLOW_COPY_AND_ASSIGN(PlatformView);
-};
-
-}  // namespace shell
-}  // namespace sky
-
-#endif  // SKY_SHELL_SKY_VIEW_H_