Create Mojo service for locking/unlocking screen orientation.

content/browser/screen_orientation/screen_orientation_service_impl.h

+// Copyright 2014 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.
+
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "content/browser/screen_orientation/screen_orientation_context.h"
+#include "content/common/screen_orientation_service.mojom.h"
+
+#ifndef CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H_
+#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H_
+
+namespace content {
+
+class ScreenOrientationProvider;
+class WebContents;
+
+class ScreenOrientationServiceImpl
+    : public mojo::InterfaceImpl<ScreenOrientationService>,
+      public ScreenOrientationContext::Observer {
+ public:
+  static void Create(WebContents* web_contents,
+                     mojo::InterfaceRequest<ScreenOrientationService> request);
+
+  void NotifyLockResult(ScreenOrientationLockResult result);
+
+ private:
+  ScreenOrientationServiceImpl(WebContents* web_contents);
+  virtual ~ScreenOrientationServiceImpl();
+
+  // ScreenOrientationContext:

[qsr, 2014/09/18 13:23:01]

ScreenOrientationContext::Observer ?

[blundell, 2014/09/22 11:37:13]

Done.

+  void OnScreenOrientationChange();
+  void OnNewLockRequest();
+
+  // ScreenOrientationService:
+  virtual void LockOrientation(
+      ScreenOrientationLockType lock_type,
+      const mojo::Callback<void(ScreenOrientationLockResult)>& callback)
+      OVERRIDE;
+  virtual void UnlockOrientation() OVERRIDE;
+
+  ScreenOrientationContext* context_;
+  scoped_ptr<ScreenOrientationProvider> provider_;
+  mojo::Callback<void(ScreenOrientationLockResult)> on_result_callback_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_SERVICE_IMPL_H_