Mojo-ify implementation of screen orientation locking/unlocking.

content/browser/screen_orientation/screen_orientation_impl.h

Index: content/browser/screen_orientation/screen_orientation_impl.h
diff --git a/content/browser/screen_orientation/screen_orientation_impl.h b/content/browser/screen_orientation/screen_orientation_impl.h
new file mode 100644
index 0000000000000000000000000000000000000000..72f9de1c9040b4943a5bed1acae5cc3bd3bd6da6
--- /dev/null
+++ b/content/browser/screen_orientation/screen_orientation_impl.h
@@ -0,0 +1,42 @@
+// 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 CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_IMPL_H
+#define CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_IMPL_H
+
+#include "base/callback.h"
+#include "base/memory/weak_ptr.h"
+#include "content/common/screen_orientation_interface.mojom.h"
+#include "content/public/browser/web_contents_binding_set.h"
+
+namespace content {
+
+class ScreenOrientationProvider;
+class WebContents;
+
+class ScreenOrientationImpl : public mojom::ScreenOrientation {

[blundell, 2016/10/21 18:16:31]

nit: the new convention is just to name this ScreenOrientation (that's why
there's the internal mojom:: namespace on generated code).

+ public:
+  ScreenOrientationImpl(WebContents* web_contents);
+  ~ScreenOrientationImpl() override;
+
+  ScreenOrientationProvider* GetScreenOrientationProvider();
+
+ private:
+  // ScreenOrientation:
+  void LockOrientation(::blink::WebScreenOrientationLockType orientation,
+                       const LockOrientationCallback& callback) override;
+  void UnlockOrientation() override;
+
+  void NotifyLockResult(::blink::mojom::ScreenOrientationLockResult result);
+
+  WebContents* web_contents_;
+  std::unique_ptr<ScreenOrientationProvider> provider_;
+  LockOrientationCallback on_result_callback_;
+  WebContentsFrameBindingSet<mojom::ScreenOrientation> binding_;
+  base::WeakPtrFactory<ScreenOrientationImpl> weak_factory_;
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_SCREEN_ORIENTATION_SCREEN_ORIENTATION_IMPL_H